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href="//donate.wikimedia.org/wiki/Special:FundraiserRedirector?utm_source=donate&utm_medium=sidebar&utm_campaign=20120521SB001&uselang=pt" class=""><span>Donativos</span></a> </li> <li id="pt-createaccount-2" class="user-links-collapsible-item mw-list-item user-links-collapsible-item"><a data-mw="interface" href="/w/index.php?title=Especial:Criar_conta&returnto=RGB&returntoquery=section%3D2%26veaction%3Dedit%26redirect%3Dno" title="É encorajado a criar uma conta e iniciar sessão; no entanto, não é obrigatório" class=""><span>Criar uma conta</span></a> </li> <li id="pt-login-2" class="user-links-collapsible-item mw-list-item user-links-collapsible-item"><a data-mw="interface" href="/w/index.php?title=Especial:Entrar&returnto=RGB&returntoquery=section%3D2%26veaction%3Dedit%26redirect%3Dno" title="Aconselhamos-lhe a criar uma conta na Wikipédia, embora tal não seja obrigatório. 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id="toc-mw-content-text" class="vector-toc-list-item vector-toc-level-1"> <a href="#" class="vector-toc-link"> <div class="vector-toc-text">Início</div> </a> </li> <li id="toc-Funcionamento" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Funcionamento"> <div class="vector-toc-text"> <span class="vector-toc-numb">1</span> <span>Funcionamento</span> </div> </a> <ul id="toc-Funcionamento-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-O_sistema_RGB_e_os_ecrãs/as_telas_do_computador" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#O_sistema_RGB_e_os_ecrãs/as_telas_do_computador"> <div class="vector-toc-text"> <span class="vector-toc-numb">2</span> <span>O sistema RGB e os ecrãs/as telas do computador</span> </div> </a> <ul id="toc-O_sistema_RGB_e_os_ecrãs/as_telas_do_computador-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Representação_numérica" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Representação_numérica"> <div class="vector-toc-text"> <span class="vector-toc-numb">3</span> <span>Representação numérica</span> </div> </a> <button aria-controls="toc-Representação_numérica-sublist" class="cdx-button cdx-button--weight-quiet cdx-button--icon-only vector-toc-toggle"> <span class="vector-icon mw-ui-icon-wikimedia-expand"></span> <span>Alternar a subsecção Representação numérica</span> </button> <ul id="toc-Representação_numérica-sublist" class="vector-toc-list"> <li id="toc-Gama_0-255" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Gama_0-255"> <div class="vector-toc-text"> <span class="vector-toc-numb">3.1</span> <span>Gama 0-255</span> </div> </a> <ul id="toc-Gama_0-255-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Gama_0-1" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Gama_0-1"> <div class="vector-toc-text"> <span class="vector-toc-numb">3.2</span> <span>Gama 0-1</span> </div> </a> <ul id="toc-Gama_0-1-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> <li id="toc-Ligações_externas" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Ligações_externas"> <div class="vector-toc-text"> <span class="vector-toc-numb">4</span> <span>Ligações externas</span> </div> </a> <ul id="toc-Ligações_externas-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Ver_também" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Ver_também"> <div class="vector-toc-text"> <span class="vector-toc-numb">5</span> <span>Ver também</span> </div> </a> <ul id="toc-Ver_também-sublist" class="vector-toc-list"> </ul> </li> </ul> </div> </div> </nav> </div> </div> <div class="mw-content-container"> <main id="content" class="mw-body"> <header class="mw-body-header vector-page-titlebar"> <nav aria-label="Conteúdo" class="vector-toc-landmark"> <div id="vector-page-titlebar-toc" class="vector-dropdown vector-page-titlebar-toc vector-button-flush-left" > <input type="checkbox" id="vector-page-titlebar-toc-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-page-titlebar-toc" class="vector-dropdown-checkbox " aria-label="Alternar o índice" > <label id="vector-page-titlebar-toc-label" for="vector-page-titlebar-toc-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-listBullet mw-ui-icon-wikimedia-listBullet"></span> <span class="vector-dropdown-label-text">Alternar o índice</span> </label> <div class="vector-dropdown-content"> <div id="vector-page-titlebar-toc-unpinned-container" class="vector-unpinned-container"> </div> </div> </div> </nav> <h1 id="firstHeading" class="firstHeading mw-first-heading"><span class="mw-page-title-main">RGB</span></h1> <div id="p-lang-btn" class="vector-dropdown mw-portlet mw-portlet-lang" > <input type="checkbox" id="p-lang-btn-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-p-lang-btn" class="vector-dropdown-checkbox mw-interlanguage-selector" aria-label="Ir para um artigo noutra língua. Disponível em 65 línguas" > <label id="p-lang-btn-label" for="p-lang-btn-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--action-progressive mw-portlet-lang-heading-65" aria-hidden="true" ><span class="vector-icon mw-ui-icon-language-progressive mw-ui-icon-wikimedia-language-progressive"></span> <span class="vector-dropdown-label-text">65 línguas</span> </label> <div class="vector-dropdown-content"> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="interlanguage-link interwiki-af mw-list-item"><a href="https://af.wikipedia.org/wiki/RGB-kleurmodel" title="RGB-kleurmodel — africanês" lang="af" hreflang="af" data-title="RGB-kleurmodel" data-language-autonym="Afrikaans" data-language-local-name="africanês" class="interlanguage-link-target"><span>Afrikaans</span></a></li><li class="interlanguage-link interwiki-ar mw-list-item"><a href="https://ar.wikipedia.org/wiki/%D8%A7%D9%84%D9%86%D9%85%D9%88%D8%B0%D8%AC_%D8%A7%D9%84%D9%84%D9%88%D9%86%D9%8A_%D8%A3%D8%AD%D9%85%D8%B1_%D8%A3%D8%AE%D8%B6%D8%B1_%D8%A3%D8%B2%D8%B1%D9%82" title="النموذج اللوني أحمر أخضر أزرق — árabe" lang="ar" hreflang="ar" data-title="النموذج اللوني أحمر أخضر أزرق" data-language-autonym="العربية" data-language-local-name="árabe" class="interlanguage-link-target"><span>العربية</span></a></li><li class="interlanguage-link interwiki-az mw-list-item"><a href="https://az.wikipedia.org/wiki/RGB" title="RGB — azerbaijano" lang="az" hreflang="az" data-title="RGB" data-language-autonym="Azərbaycanca" data-language-local-name="azerbaijano" class="interlanguage-link-target"><span>Azərbaycanca</span></a></li><li class="interlanguage-link interwiki-be mw-list-item"><a href="https://be.wikipedia.org/wiki/RGB" title="RGB — bielorrusso" lang="be" hreflang="be" data-title="RGB" data-language-autonym="Беларуская" data-language-local-name="bielorrusso" class="interlanguage-link-target"><span>Беларуская</span></a></li><li class="interlanguage-link interwiki-bg mw-list-item"><a href="https://bg.wikipedia.org/wiki/RGB_%D1%86%D0%B2%D0%B5%D1%82%D0%BE%D0%B2%D0%B8_%D0%BC%D0%BE%D0%B4%D0%B5%D0%BB" title="RGB цветови модел — búlgaro" lang="bg" hreflang="bg" data-title="RGB цветови модел" data-language-autonym="Български" data-language-local-name="búlgaro" class="interlanguage-link-target"><span>Български</span></a></li><li class="interlanguage-link interwiki-bn mw-list-item"><a href="https://bn.wikipedia.org/wiki/%E0%A6%86%E0%A6%B0%E0%A6%9C%E0%A6%BF%E0%A6%AC%E0%A6%BF_%E0%A6%B0%E0%A6%82_%E0%A6%AE%E0%A6%A1%E0%A7%87%E0%A6%B2" title="আরজিবি রং মডেল — bengalês" lang="bn" hreflang="bn" data-title="আরজিবি রং মডেল" data-language-autonym="বাংলা" data-language-local-name="bengalês" class="interlanguage-link-target"><span>বাংলা</span></a></li><li class="interlanguage-link interwiki-bs mw-list-item"><a href="https://bs.wikipedia.org/wiki/RGB" title="RGB — bósnio" lang="bs" hreflang="bs" data-title="RGB" data-language-autonym="Bosanski" data-language-local-name="bósnio" class="interlanguage-link-target"><span>Bosanski</span></a></li><li class="interlanguage-link interwiki-ca mw-list-item"><a href="https://ca.wikipedia.org/wiki/Model_de_color_RGB" title="Model de color RGB — catalão" lang="ca" hreflang="ca" data-title="Model de color RGB" data-language-autonym="Català" data-language-local-name="catalão" class="interlanguage-link-target"><span>Català</span></a></li><li class="interlanguage-link interwiki-cs mw-list-item"><a href="https://cs.wikipedia.org/wiki/RGB" title="RGB — checo" lang="cs" hreflang="cs" data-title="RGB" data-language-autonym="Čeština" data-language-local-name="checo" class="interlanguage-link-target"><span>Čeština</span></a></li><li class="interlanguage-link interwiki-da mw-list-item"><a href="https://da.wikipedia.org/wiki/RGB-farver" title="RGB-farver — dinamarquês" lang="da" hreflang="da" data-title="RGB-farver" data-language-autonym="Dansk" data-language-local-name="dinamarquês" class="interlanguage-link-target"><span>Dansk</span></a></li><li class="interlanguage-link interwiki-el mw-list-item"><a href="https://el.wikipedia.org/wiki/RGB" title="RGB — grego" lang="el" hreflang="el" data-title="RGB" data-language-autonym="Ελληνικά" data-language-local-name="grego" class="interlanguage-link-target"><span>Ελληνικά</span></a></li><li class="interlanguage-link interwiki-en mw-list-item"><a href="https://en.wikipedia.org/wiki/RGB_color_model" title="RGB color model — inglês" lang="en" hreflang="en" data-title="RGB color model" data-language-autonym="English" data-language-local-name="inglês" class="interlanguage-link-target"><span>English</span></a></li><li class="interlanguage-link interwiki-eo mw-list-item"><a href="https://eo.wikipedia.org/wiki/RVB_(kolormodelo)" title="RVB (kolormodelo) — esperanto" lang="eo" hreflang="eo" data-title="RVB (kolormodelo)" data-language-autonym="Esperanto" data-language-local-name="esperanto" class="interlanguage-link-target"><span>Esperanto</span></a></li><li class="interlanguage-link interwiki-es mw-list-item"><a href="https://es.wikipedia.org/wiki/RGB" title="RGB — espanhol" lang="es" hreflang="es" data-title="RGB" data-language-autonym="Español" data-language-local-name="espanhol" class="interlanguage-link-target"><span>Español</span></a></li><li class="interlanguage-link interwiki-et mw-list-item"><a href="https://et.wikipedia.org/wiki/RGB-mudel" title="RGB-mudel — estónio" lang="et" hreflang="et" data-title="RGB-mudel" data-language-autonym="Eesti" data-language-local-name="estónio" class="interlanguage-link-target"><span>Eesti</span></a></li><li class="interlanguage-link interwiki-eu mw-list-item"><a href="https://eu.wikipedia.org/wiki/RGB_kolore-eredua" title="RGB kolore-eredua — basco" lang="eu" hreflang="eu" data-title="RGB kolore-eredua" data-language-autonym="Euskara" data-language-local-name="basco" class="interlanguage-link-target"><span>Euskara</span></a></li><li class="interlanguage-link interwiki-fa mw-list-item"><a href="https://fa.wikipedia.org/wiki/%D9%85%D8%AF%D9%84_%D8%B1%D9%86%DA%AF%DB%8C_%D8%A2%D8%B1%D8%AC%DB%8C%E2%80%8C%D8%A8%DB%8C" title="مدل رنگی آرجی‌بی — persa" lang="fa" hreflang="fa" data-title="مدل رنگی آرجی‌بی" data-language-autonym="فارسی" data-language-local-name="persa" class="interlanguage-link-target"><span>فارسی</span></a></li><li class="interlanguage-link interwiki-fi mw-list-item"><a href="https://fi.wikipedia.org/wiki/RGB-v%C3%A4rimalli" title="RGB-värimalli — finlandês" lang="fi" hreflang="fi" data-title="RGB-värimalli" data-language-autonym="Suomi" data-language-local-name="finlandês" class="interlanguage-link-target"><span>Suomi</span></a></li><li class="interlanguage-link interwiki-fr mw-list-item"><a href="https://fr.wikipedia.org/wiki/Rouge-vert-bleu" title="Rouge-vert-bleu — francês" lang="fr" hreflang="fr" data-title="Rouge-vert-bleu" data-language-autonym="Français" data-language-local-name="francês" class="interlanguage-link-target"><span>Français</span></a></li><li class="interlanguage-link interwiki-fy mw-list-item"><a href="https://fy.wikipedia.org/wiki/RGB-kleursysteem" title="RGB-kleursysteem — frísico ocidental" lang="fy" hreflang="fy" data-title="RGB-kleursysteem" data-language-autonym="Frysk" data-language-local-name="frísico ocidental" class="interlanguage-link-target"><span>Frysk</span></a></li><li class="interlanguage-link interwiki-gd mw-list-item"><a href="https://gd.wikipedia.org/wiki/Siostam_RGB" title="Siostam RGB — gaélico escocês" lang="gd" hreflang="gd" data-title="Siostam RGB" data-language-autonym="Gàidhlig" data-language-local-name="gaélico escocês" class="interlanguage-link-target"><span>Gàidhlig</span></a></li><li class="interlanguage-link interwiki-gl mw-list-item"><a href="https://gl.wikipedia.org/wiki/RGB" title="RGB — galego" lang="gl" hreflang="gl" data-title="RGB" data-language-autonym="Galego" data-language-local-name="galego" class="interlanguage-link-target"><span>Galego</span></a></li><li class="interlanguage-link interwiki-he mw-list-item"><a href="https://he.wikipedia.org/wiki/%D7%99%D7%99%D7%A6%D7%95%D7%92_%D7%A6%D7%91%D7%A2_%D7%91%D7%9E%D7%97%D7%A9%D7%91" title="ייצוג צבע במחשב — hebraico" lang="he" hreflang="he" data-title="ייצוג צבע במחשב" data-language-autonym="עברית" data-language-local-name="hebraico" class="interlanguage-link-target"><span>עברית</span></a></li><li class="interlanguage-link interwiki-hi mw-list-item"><a href="https://hi.wikipedia.org/wiki/%E0%A4%B2%E0%A4%BE%E0%A4%B2_%E0%A4%B9%E0%A4%B0%E0%A4%BE_%E0%A4%A8%E0%A5%80%E0%A4%B2%E0%A4%BE_%E0%A4%B0%E0%A4%82%E0%A4%97_%E0%A4%AA%E0%A5%8D%E0%A4%B0%E0%A4%A4%E0%A4%BF%E0%A4%B0%E0%A5%82%E0%A4%AA" title="लाल हरा नीला रंग प्रतिरूप — hindi" lang="hi" hreflang="hi" data-title="लाल हरा नीला रंग प्रतिरूप" data-language-autonym="हिन्दी" data-language-local-name="hindi" class="interlanguage-link-target"><span>हिन्दी</span></a></li><li class="interlanguage-link interwiki-hr mw-list-item"><a href="https://hr.wikipedia.org/wiki/RGB" title="RGB — croata" lang="hr" hreflang="hr" data-title="RGB" data-language-autonym="Hrvatski" data-language-local-name="croata" class="interlanguage-link-target"><span>Hrvatski</span></a></li><li class="interlanguage-link interwiki-hu mw-list-item"><a href="https://hu.wikipedia.org/wiki/RGB" title="RGB — húngaro" lang="hu" hreflang="hu" data-title="RGB" data-language-autonym="Magyar" data-language-local-name="húngaro" class="interlanguage-link-target"><span>Magyar</span></a></li><li class="interlanguage-link interwiki-hy mw-list-item"><a href="https://hy.wikipedia.org/wiki/RGB" title="RGB — arménio" lang="hy" hreflang="hy" data-title="RGB" data-language-autonym="Հայերեն" data-language-local-name="arménio" class="interlanguage-link-target"><span>Հայերեն</span></a></li><li class="interlanguage-link interwiki-id mw-list-item"><a href="https://id.wikipedia.org/wiki/RGB" title="RGB — indonésio" lang="id" hreflang="id" data-title="RGB" data-language-autonym="Bahasa Indonesia" data-language-local-name="indonésio" class="interlanguage-link-target"><span>Bahasa Indonesia</span></a></li><li class="interlanguage-link interwiki-is mw-list-item"><a href="https://is.wikipedia.org/wiki/RGB" title="RGB — islandês" lang="is" hreflang="is" data-title="RGB" data-language-autonym="Íslenska" data-language-local-name="islandês" class="interlanguage-link-target"><span>Íslenska</span></a></li><li class="interlanguage-link interwiki-it mw-list-item"><a href="https://it.wikipedia.org/wiki/RGB" title="RGB — italiano" lang="it" hreflang="it" data-title="RGB" data-language-autonym="Italiano" data-language-local-name="italiano" class="interlanguage-link-target"><span>Italiano</span></a></li><li class="interlanguage-link interwiki-ja mw-list-item"><a href="https://ja.wikipedia.org/wiki/RGB" title="RGB — japonês" lang="ja" hreflang="ja" data-title="RGB" data-language-autonym="日本語" data-language-local-name="japonês" class="interlanguage-link-target"><span>日本語</span></a></li><li class="interlanguage-link interwiki-ko mw-list-item"><a href="https://ko.wikipedia.org/wiki/RGB" title="RGB — coreano" lang="ko" hreflang="ko" data-title="RGB" data-language-autonym="한국어" data-language-local-name="coreano" class="interlanguage-link-target"><span>한국어</span></a></li><li class="interlanguage-link interwiki-ku mw-list-item"><a href="https://ku.wikipedia.org/wiki/Modela_RGB_ya_rengan" title="Modela RGB ya rengan — curdo" lang="ku" hreflang="ku" data-title="Modela RGB ya rengan" data-language-autonym="Kurdî" data-language-local-name="curdo" class="interlanguage-link-target"><span>Kurdî</span></a></li><li class="interlanguage-link interwiki-lt mw-list-item"><a href="https://lt.wikipedia.org/wiki/RGB" title="RGB — lituano" lang="lt" hreflang="lt" data-title="RGB" data-language-autonym="Lietuvių" data-language-local-name="lituano" class="interlanguage-link-target"><span>Lietuvių</span></a></li><li class="interlanguage-link interwiki-lv mw-list-item"><a href="https://lv.wikipedia.org/wiki/Sarkanza%C4%BCzilais_kr%C4%81su_modelis" title="Sarkanzaļzilais krāsu modelis — letão" lang="lv" hreflang="lv" data-title="Sarkanzaļzilais krāsu modelis" data-language-autonym="Latviešu" data-language-local-name="letão" class="interlanguage-link-target"><span>Latviešu</span></a></li><li class="interlanguage-link interwiki-mhr mw-list-item"><a href="https://mhr.wikipedia.org/wiki/RGB" title="RGB — Eastern Mari" lang="mhr" hreflang="mhr" data-title="RGB" data-language-autonym="Олык марий" data-language-local-name="Eastern Mari" class="interlanguage-link-target"><span>Олык марий</span></a></li><li class="interlanguage-link interwiki-mk mw-list-item"><a href="https://mk.wikipedia.org/wiki/RGB" title="RGB — macedónio" lang="mk" hreflang="mk" data-title="RGB" data-language-autonym="Македонски" data-language-local-name="macedónio" class="interlanguage-link-target"><span>Македонски</span></a></li><li class="interlanguage-link interwiki-ml mw-list-item"><a href="https://ml.wikipedia.org/wiki/%E0%B4%9A%E0%B5%81%E0%B4%B5%E0%B4%AA%E0%B5%8D%E0%B4%AA%E0%B5%81%E0%B4%AA%E0%B4%9A%E0%B5%8D%E0%B4%9A%E0%B4%A8%E0%B5%80%E0%B4%B2_%E0%B4%A8%E0%B4%BF%E0%B4%B1%E0%B4%B5%E0%B5%8D%E0%B4%AF%E0%B4%B5%E0%B4%B8%E0%B5%8D%E0%B4%A5" title="ചുവപ്പുപച്ചനീല നിറവ്യവസ്ഥ — malaiala" lang="ml" hreflang="ml" data-title="ചുവപ്പുപച്ചനീല നിറവ്യവസ്ഥ" data-language-autonym="മലയാളം" data-language-local-name="malaiala" class="interlanguage-link-target"><span>മലയാളം</span></a></li><li class="interlanguage-link interwiki-nl mw-list-item"><a href="https://nl.wikipedia.org/wiki/RGB-kleursysteem" title="RGB-kleursysteem — neerlandês" lang="nl" hreflang="nl" data-title="RGB-kleursysteem" data-language-autonym="Nederlands" data-language-local-name="neerlandês" class="interlanguage-link-target"><span>Nederlands</span></a></li><li class="interlanguage-link interwiki-no mw-list-item"><a href="https://no.wikipedia.org/wiki/RGB" title="RGB — norueguês bokmål" lang="nb" hreflang="nb" data-title="RGB" data-language-autonym="Norsk bokmål" data-language-local-name="norueguês bokmål" class="interlanguage-link-target"><span>Norsk bokmål</span></a></li><li class="interlanguage-link interwiki-olo mw-list-item"><a href="https://olo.wikipedia.org/wiki/RGB" title="RGB — Livvi-Karelian" lang="olo" hreflang="olo" data-title="RGB" data-language-autonym="Livvinkarjala" data-language-local-name="Livvi-Karelian" class="interlanguage-link-target"><span>Livvinkarjala</span></a></li><li class="interlanguage-link interwiki-pl mw-list-item"><a href="https://pl.wikipedia.org/wiki/RGB" title="RGB — polaco" lang="pl" hreflang="pl" data-title="RGB" data-language-autonym="Polski" data-language-local-name="polaco" class="interlanguage-link-target"><span>Polski</span></a></li><li class="interlanguage-link interwiki-ro mw-list-item"><a href="https://ro.wikipedia.org/wiki/Modelul_de_culoare_RGB" title="Modelul de culoare RGB — romeno" lang="ro" hreflang="ro" data-title="Modelul de culoare RGB" data-language-autonym="Română" data-language-local-name="romeno" class="interlanguage-link-target"><span>Română</span></a></li><li class="interlanguage-link interwiki-ru mw-list-item"><a href="https://ru.wikipedia.org/wiki/RGB" title="RGB — russo" lang="ru" hreflang="ru" data-title="RGB" data-language-autonym="Русский" data-language-local-name="russo" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-sd mw-list-item"><a href="https://sd.wikipedia.org/wiki/%D8%A2%D8%B1_%D8%AC%D9%8A_%D8%A8%D9%8A_%D8%B1%D9%86%DA%AF_%D9%85%D8%A7%DA%8A%D9%84" title="آر جي بي رنگ ماڊل — sindi" lang="sd" hreflang="sd" data-title="آر جي بي رنگ ماڊل" data-language-autonym="سنڌي" data-language-local-name="sindi" class="interlanguage-link-target"><span>سنڌي</span></a></li><li class="interlanguage-link interwiki-sh mw-list-item"><a href="https://sh.wikipedia.org/wiki/RGB" title="RGB — servo-croata" lang="sh" hreflang="sh" data-title="RGB" data-language-autonym="Srpskohrvatski / српскохрватски" data-language-local-name="servo-croata" class="interlanguage-link-target"><span>Srpskohrvatski / српскохрватски</span></a></li><li class="interlanguage-link interwiki-si mw-list-item"><a href="https://si.wikipedia.org/wiki/RGB_%E0%B7%80%E0%B6%BB%E0%B7%8A%E0%B6%AB_%E0%B6%86%E0%B6%9A%E0%B7%98%E0%B6%AD%E0%B7%92%E0%B6%BA" title="RGB වර්ණ ආකෘතිය — cingalês" lang="si" hreflang="si" data-title="RGB වර්ණ ආකෘතිය" data-language-autonym="සිංහල" data-language-local-name="cingalês" class="interlanguage-link-target"><span>සිංහල</span></a></li><li class="interlanguage-link interwiki-simple mw-list-item"><a href="https://simple.wikipedia.org/wiki/RGB" title="RGB — Simple English" lang="en-simple" hreflang="en-simple" data-title="RGB" data-language-autonym="Simple English" data-language-local-name="Simple English" class="interlanguage-link-target"><span>Simple English</span></a></li><li class="interlanguage-link interwiki-sk mw-list-item"><a href="https://sk.wikipedia.org/wiki/RGB" title="RGB — eslovaco" lang="sk" hreflang="sk" data-title="RGB" data-language-autonym="Slovenčina" data-language-local-name="eslovaco" class="interlanguage-link-target"><span>Slovenčina</span></a></li><li class="interlanguage-link interwiki-skr mw-list-item"><a href="https://skr.wikipedia.org/wiki/%D8%A2%D8%B1_%D8%AC%DB%8C_%D8%A8%DB%8C_%DA%A9%D9%84%D8%B1_%D9%85%D8%A7%DA%88%D9%84" title="آر جی بی کلر ماڈل — Saraiki" lang="skr" hreflang="skr" data-title="آر جی بی کلر ماڈل" data-language-autonym="سرائیکی" data-language-local-name="Saraiki" class="interlanguage-link-target"><span>سرائیکی</span></a></li><li class="interlanguage-link interwiki-sl mw-list-item"><a href="https://sl.wikipedia.org/wiki/Barvni_model_RGB" title="Barvni model RGB — esloveno" lang="sl" hreflang="sl" data-title="Barvni model RGB" data-language-autonym="Slovenščina" data-language-local-name="esloveno" class="interlanguage-link-target"><span>Slovenščina</span></a></li><li class="interlanguage-link interwiki-sq mw-list-item"><a href="https://sq.wikipedia.org/wiki/Vlerat_KGJK" title="Vlerat KGJK — albanês" lang="sq" hreflang="sq" data-title="Vlerat KGJK" data-language-autonym="Shqip" data-language-local-name="albanês" class="interlanguage-link-target"><span>Shqip</span></a></li><li class="interlanguage-link interwiki-sr mw-list-item"><a href="https://sr.wikipedia.org/wiki/RGB" title="RGB — sérvio" lang="sr" hreflang="sr" data-title="RGB" data-language-autonym="Српски / srpski" data-language-local-name="sérvio" class="interlanguage-link-target"><span>Српски / srpski</span></a></li><li class="interlanguage-link interwiki-sv mw-list-item"><a href="https://sv.wikipedia.org/wiki/RGB" title="RGB — sueco" lang="sv" hreflang="sv" data-title="RGB" data-language-autonym="Svenska" data-language-local-name="sueco" class="interlanguage-link-target"><span>Svenska</span></a></li><li class="interlanguage-link interwiki-tg mw-list-item"><a href="https://tg.wikipedia.org/wiki/RGB" title="RGB — tajique" lang="tg" hreflang="tg" data-title="RGB" data-language-autonym="Тоҷикӣ" data-language-local-name="tajique" class="interlanguage-link-target"><span>Тоҷикӣ</span></a></li><li class="interlanguage-link interwiki-th mw-list-item"><a href="https://th.wikipedia.org/wiki/%E0%B8%A3%E0%B8%B0%E0%B8%9A%E0%B8%9A%E0%B8%AA%E0%B8%B5_RGB" title="ระบบสี RGB — tailandês" lang="th" hreflang="th" data-title="ระบบสี RGB" data-language-autonym="ไทย" data-language-local-name="tailandês" class="interlanguage-link-target"><span>ไทย</span></a></li><li class="interlanguage-link interwiki-tr mw-list-item"><a href="https://tr.wikipedia.org/wiki/RGB_renk_modeli" title="RGB renk modeli — turco" lang="tr" hreflang="tr" data-title="RGB renk modeli" data-language-autonym="Türkçe" data-language-local-name="turco" class="interlanguage-link-target"><span>Türkçe</span></a></li><li class="interlanguage-link interwiki-tt mw-list-item"><a href="https://tt.wikipedia.org/wiki/RGB" title="RGB — tatar" lang="tt" hreflang="tt" data-title="RGB" data-language-autonym="Татарча / tatarça" data-language-local-name="tatar" class="interlanguage-link-target"><span>Татарча / tatarça</span></a></li><li class="interlanguage-link interwiki-uk mw-list-item"><a href="https://uk.wikipedia.org/wiki/RGB" title="RGB — ucraniano" lang="uk" hreflang="uk" data-title="RGB" data-language-autonym="Українська" data-language-local-name="ucraniano" class="interlanguage-link-target"><span>Українська</span></a></li><li class="interlanguage-link interwiki-ur mw-list-item"><a href="https://ur.wikipedia.org/wiki/%D8%A2%D8%B1_%D8%AC%DB%8C_%D8%A8%DB%8C_%D8%B1%D9%86%DA%AF_%D9%85%D8%A7%DA%88%D9%84" title="آر جی بی رنگ ماڈل — urdu" lang="ur" hreflang="ur" data-title="آر جی بی رنگ ماڈل" data-language-autonym="اردو" data-language-local-name="urdu" class="interlanguage-link-target"><span>اردو</span></a></li><li class="interlanguage-link interwiki-vi mw-list-item"><a href="https://vi.wikipedia.org/wiki/M%C3%B4_h%C3%ACnh_m%C3%A0u_RGB" title="Mô hình màu RGB — vietnamita" lang="vi" hreflang="vi" data-title="Mô hình màu RGB" data-language-autonym="Tiếng Việt" data-language-local-name="vietnamita" class="interlanguage-link-target"><span>Tiếng Việt</span></a></li><li class="interlanguage-link interwiki-wuu mw-list-item"><a href="https://wuu.wikipedia.org/wiki/%E4%B8%89%E5%8E%9F%E8%89%B2%E5%85%89%E6%A8%A1%E5%BC%8F" title="三原色光模式 — wu" lang="wuu" hreflang="wuu" data-title="三原色光模式" data-language-autonym="吴语" data-language-local-name="wu" class="interlanguage-link-target"><span>吴语</span></a></li><li class="interlanguage-link interwiki-zh mw-list-item"><a href="https://zh.wikipedia.org/wiki/%E4%B8%89%E5%8E%9F%E8%89%B2%E5%85%89%E6%A8%A1%E5%BC%8F" title="三原色光模式 — chinês" lang="zh" hreflang="zh" data-title="三原色光模式" data-language-autonym="中文" data-language-local-name="chinês" class="interlanguage-link-target"><span>中文</span></a></li><li class="interlanguage-link interwiki-zh-classical mw-list-item"><a href="https://zh-classical.wikipedia.org/wiki/%E4%B8%89%E5%8E%9F%E8%89%B2" title="三原色 — Literary Chinese" lang="lzh" hreflang="lzh" data-title="三原色" data-language-autonym="文言" data-language-local-name="Literary Chinese" class="interlanguage-link-target"><span>文言</span></a></li><li class="interlanguage-link interwiki-zh-yue mw-list-item"><a href="https://zh-yue.wikipedia.org/wiki/RGB_%E8%89%B2%E5%BD%A9%E6%A8%A1%E5%BC%8F" title="RGB 色彩模式 — cantonês" lang="yue" hreflang="yue" data-title="RGB 色彩模式" data-language-autonym="粵語" data-language-local-name="cantonês" class="interlanguage-link-target"><span>粵語</span></a></li> </ul> <div class="after-portlet after-portlet-lang"><span class="wb-langlinks-edit wb-langlinks-link"><a href="https://www.wikidata.org/wiki/Special:EntityPage/Q166194#sitelinks-wikipedia" title="Editar hiperligações interlínguas" class="wbc-editpage">Editar hiperligações</a></span></div> </div> </div> </div> </header> <div class="vector-page-toolbar"> <div class="vector-page-toolbar-container"> <div id="left-navigation"> <nav aria-label="Espaços nominais"> <div id="p-associated-pages" class="vector-menu vector-menu-tabs mw-portlet mw-portlet-associated-pages" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-nstab-main" class="selected vector-tab-noicon mw-list-item"><a href="/wiki/RGB" title="Ver a página de conteúdo [c]" accesskey="c"><span>Artigo</span></a></li><li id="ca-talk" class="new vector-tab-noicon mw-list-item"><a href="/w/index.php?title=Discuss%C3%A3o:RGB&action=edit&redlink=1" rel="discussion" class="new" title="Discussão sobre o conteúdo da página (página não existe) [t]" accesskey="t"><span>Discussão</span></a></li> </ul> </div> </div> <div id="vector-variants-dropdown" class="vector-dropdown emptyPortlet" > <input type="checkbox" id="vector-variants-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-variants-dropdown" class="vector-dropdown-checkbox " aria-label="Mudar a variante da língua" > <label id="vector-variants-dropdown-label" for="vector-variants-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet" aria-hidden="true" ><span class="vector-dropdown-label-text">português</span> </label> <div class="vector-dropdown-content"> <div id="p-variants" class="vector-menu mw-portlet mw-portlet-variants emptyPortlet" > <div class="vector-menu-content"> <ul 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[h]" accesskey="h"><span>Ver histórico</span></a></li> </ul> </div> </div> </nav> <nav class="vector-page-tools-landmark" aria-label="Ferramentas de página"> <div id="vector-page-tools-dropdown" class="vector-dropdown vector-page-tools-dropdown" > <input type="checkbox" id="vector-page-tools-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-page-tools-dropdown" class="vector-dropdown-checkbox " aria-label="Ferramentas" > <label id="vector-page-tools-dropdown-label" for="vector-page-tools-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet" aria-hidden="true" ><span class="vector-dropdown-label-text">Ferramentas</span> </label> <div class="vector-dropdown-content"> <div id="vector-page-tools-unpinned-container" class="vector-unpinned-container"> <div id="vector-page-tools" class="vector-page-tools vector-pinnable-element"> <div class="vector-pinnable-header vector-page-tools-pinnable-header vector-pinnable-header-unpinned" data-feature-name="page-tools-pinned" data-pinnable-element-id="vector-page-tools" data-pinned-container-id="vector-page-tools-pinned-container" data-unpinned-container-id="vector-page-tools-unpinned-container" > <div class="vector-pinnable-header-label">Ferramentas</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-page-tools.pin">mover para a barra lateral</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-page-tools.unpin">ocultar</button> </div> <div id="p-cactions" class="vector-menu mw-portlet mw-portlet-cactions emptyPortlet vector-has-collapsible-items" title="Mais opções" > <div class="vector-menu-heading"> Operações </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-more-view" class="selected vector-more-collapsible-item mw-list-item"><a href="/wiki/RGB"><span>Ler</span></a></li><li id="ca-more-ve-edit" class="vector-more-collapsible-item mw-list-item"><a href="/w/index.php?title=RGB&veaction=edit" title="Editar esta página [v]" accesskey="v"><span>Editar</span></a></li><li id="ca-more-edit" class="collapsible vector-more-collapsible-item mw-list-item"><a href="/w/index.php?title=RGB&action=edit" title="Editar o código-fonte desta página [e]" accesskey="e"><span>Editar código-fonte</span></a></li><li id="ca-more-history" class="vector-more-collapsible-item mw-list-item"><a href="/w/index.php?title=RGB&action=history"><span>Ver histórico</span></a></li> </ul> </div> </div> <div id="p-tb" class="vector-menu mw-portlet mw-portlet-tb" > <div class="vector-menu-heading"> Geral </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="t-whatlinkshere" class="mw-list-item"><a href="/wiki/Especial:P%C3%A1ginas_afluentes/RGB" title="Lista de todas as páginas que contêm hiperligações para esta [j]" accesskey="j"><span>Páginas afluentes</span></a></li><li id="t-recentchangeslinked" class="mw-list-item"><a href="/wiki/Especial:Altera%C3%A7%C3%B5es_relacionadas/RGB" rel="nofollow" title="Mudanças recentes nas páginas para as quais esta contém hiperligações [k]" accesskey="k"><span>Alterações relacionadas</span></a></li><li id="t-upload" class="mw-list-item"><a href="/wiki/Wikipedia:Carregar_ficheiro" title="Carregar ficheiros [u]" accesskey="u"><span>Carregar ficheiro</span></a></li><li id="t-specialpages" class="mw-list-item"><a href="/wiki/Especial:P%C3%A1ginas_especiais" title="Lista de páginas especiais [q]" accesskey="q"><span>Páginas especiais</span></a></li><li id="t-permalink" class="mw-list-item"><a href="/w/index.php?title=RGB&oldid=67289979" title="Hiperligação permanente para esta revisão desta página"><span>Hiperligação permanente</span></a></li><li id="t-info" class="mw-list-item"><a href="/w/index.php?title=RGB&action=info" title="Mais informações sobre esta página"><span>Informações da página</span></a></li><li id="t-cite" class="mw-list-item"><a href="/w/index.php?title=Especial:Citar&page=RGB&id=67289979&wpFormIdentifier=titleform" title="Informação sobre como citar esta página"><span>Citar esta página</span></a></li><li id="t-urlshortener" class="mw-list-item"><a href="/w/index.php?title=Especial:UrlShortener&url=https%3A%2F%2Fpt.wikipedia.org%2Fw%2Findex.php%3Ftitle%3DRGB%26section%3D2%26veaction%3Dedit"><span>Obter URL encurtado</span></a></li><li id="t-urlshortener-qrcode" class="mw-list-item"><a href="/w/index.php?title=Especial:QrCode&url=https%3A%2F%2Fpt.wikipedia.org%2Fw%2Findex.php%3Ftitle%3DRGB%26section%3D2%26veaction%3Dedit"><span>Descarregar código QR</span></a></li> </ul> </div> </div> <div id="p-coll-print_export" class="vector-menu mw-portlet mw-portlet-coll-print_export" > <div class="vector-menu-heading"> Imprimir/exportar </div> <div 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.tmbox.mbox-small{clear:right;float:right;margin:4px 0 4px 1em;width:238px}}@media screen{html.skin-theme-clientpref-night .mw-parser-output .tmbox{background-color:#2e2505}html.skin-theme-clientpref-night .mw-parser-output .tmbox-speedy{background-color:#310402}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .tmbox{background-color:#2e2505}html.skin-theme-clientpref-os .mw-parser-output .tmbox-speedy{background-color:#310402}}body.skin--responsive .mw-parser-output table.tmbox img{max-width:none!important}</style><table class="box-Sem_fontes plainlinks metadata ambox ambox-content ambox-Unreferenced" role="presentation"><tbody><tr><td class="mbox-image"><div style="width:52px"><span typeof="mw:File"><a href="/wiki/Ficheiro:Question_book.svg" class="mw-file-description"><img alt="" src="//upload.wikimedia.org/wikipedia/commons/thumb/9/97/Question_book.svg/40px-Question_book.svg.png" decoding="async" width="40" height="32" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/9/97/Question_book.svg/60px-Question_book.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/9/97/Question_book.svg/80px-Question_book.svg.png 2x" data-file-width="252" data-file-height="199" /></a></span></div></td><td class="mbox-text"><div class="mbox-text-span">Este artigo <b>não cita <a href="/wiki/Wikip%C3%A9dia:Verificabilidade" title="Wikipédia:Verificabilidade">fontes confiáveis</a></b>.<span class="hide-when-compact"> Ajude a <a href="/wiki/Wikip%C3%A9dia:Livro_de_estilo/Cite_as_fontes" title="Wikipédia:Livro de estilo/Cite as fontes">inserir referências</a>. Conteúdo não <a href="/wiki/Wikip%C3%A9dia:Verificabilidade" title="Wikipédia:Verificabilidade">verificável</a> pode ser removido.—<small><i>Encontre fontes:</i> <span class="plainlinks"><a rel="nofollow" class="external text" href="https://wikipedialibrary.wmflabs.org/">ABW</a>  •  <a rel="nofollow" class="external text" href="https://www.periodicos.capes.gov.br">CAPES</a>  •  <a rel="nofollow" class="external text" href="https://www.google.com/search?as_eq=wikipedia&as_epq=RGB">Google</a> (<a rel="nofollow" class="external text" href="https://www.google.com/search?hl=pt&tbm=nws&q=RGB&oq=RGB">N</a> • <a rel="nofollow" class="external text" href="http://books.google.com/books?&as_brr=0&as_epq=RGB">L</a> • <a rel="nofollow" class="external text" href="https://scholar.google.com/scholar?hl=pt&q=RGB">A</a>)</span></small></span> <small class="date-container"><i>(<span class="date">Julho de 2012</span>)</i></small></div></td></tr></tbody></table> <figure typeof="mw:File/Thumb"><a href="/wiki/Ficheiro:Synthese%2B.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/e/e0/Synthese%2B.svg/200px-Synthese%2B.svg.png" decoding="async" width="200" height="191" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/e/e0/Synthese%2B.svg/300px-Synthese%2B.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/e/e0/Synthese%2B.svg/400px-Synthese%2B.svg.png 2x" data-file-width="512" data-file-height="488" /></a><figcaption>Mistura das cores</figcaption></figure> <p><b>RGB</b> é a abreviatura de um <a href="/wiki/Modelo_de_cor" title="Modelo de cor">sistema de cores</a> aditivas em que o <a href="/wiki/Vermelho" title="Vermelho">Vermelho</a> (<b>R</b>ed), o <a href="/wiki/Verde" title="Verde">Verde</a> (<b>G</b>reen) e o <a href="/wiki/Azul" title="Azul">Azul</a> (<b>B</b>lue) são combinados de várias formas de modo a reproduzir um largo espectro cromático. O propósito principal do sistema RGB é a reprodução de cores em dispositivos eletrônicos como monitores de TV e computador, retroprojetores, scanners e câmeras digitais, assim como na fotografia tradicional. Em contraposição, impressoras utilizam o modelo <a href="/wiki/CMYK" title="CMYK">CMYK</a> de cores subtrativas. </p><p>O modelo de cores RGB é baseado na teoria de visão colorida tricromática, de <a href="/wiki/Thomas_Young" title="Thomas Young">Young</a>-<a href="/wiki/Hermann_von_Helmholtz" title="Hermann von Helmholtz">Helmholtz</a>, e no triângulo de cores de <a href="/wiki/James_Clerk_Maxwell" title="James Clerk Maxwell">Maxwell</a>. O uso do modelo RGB como padrão para apresentação de cores na Internet tem suas raízes nos padrões de cores de <a href="/wiki/TV" class="mw-redirect" title="TV">televisões</a> RCA de <a href="/wiki/1953" title="1953">1953</a> e no uso do padrão RGB nas câmeras Land/Polaroid, pós <a href="/wiki/Edwin_Land" title="Edwin Land">Edwin Land</a>. </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="Funcionamento">Funcionamento</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=RGB&veaction=edit&section=1" title="Editar secção: Funcionamento" class="mw-editsection-visualeditor"><span>editar</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=RGB&action=edit&section=1" title="Editar código-fonte da secção: Funcionamento"><span>editar código-fonte</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Modelos aditivos cromáticos são combinados de várias maneiras para reproduzir outras cores. O nome deste modelo e a abreviação RGB vêm das três cores primárias aditivas: vermelho, verde e azul (<i>Red</i>, <i>Green</i>, e <i>Blue</i>, em inglês), e só foi possível devido ao desenvolvimento tecnológico de tubos de raios catódicos – com os quais foi possível fazer o display de cores ao invés de uma <a href="/wiki/Fosforesc%C3%AAncia" title="Fosforescência">fosforescência</a>. </p><p>Estas três cores não devem ser confundidas com os pigmentos primários <a href="/wiki/Ciano" title="Ciano">Ciano</a>, <a href="/wiki/Magenta" title="Magenta">Magenta</a> e Amarelo, conhecidos no mundo das artes como “cores primárias”, já que se combinam baseadas na reflexão e absorção de fótons visto que o RGB depende da emissão de fótons de um componente excitado a um estado de energia mais elevado (fonte emissora, por exemplo, o tubo de raios catódicos). </p><p>O modelo de cores RGB, por si só, não define o que significa “vermelho”, “verde” ou “azul” (espectroscopicamente), e então os resultados de misturá-los não são tão exatos (e sim relativos, na média da percepção do olho humano). </p><p>O termo <a href="/wiki/RGBA" title="RGBA">RGBA</a> é também usado, significando <i>Red</i>, <i>Green</i>, <i>Blue</i>, e <i>Alpha</i>. Este não é um modelo de cores diferente, e sim uma representação – uma vez que o Alpha é usado para indicar transparência. Em modelos de representação de cores de <a href="/wiki/Imagem_de_sat%C3%A9lite" title="Imagem de satélite">satélite</a>, por exemplo, o Alpha pode representar o efeito de <a href="/wiki/Turbidez" title="Turbidez">turbidez</a> ocasionado pela <a href="/wiki/Atmosfera" title="Atmosfera">atmosfera</a> - deixando as cores com padrões mais opacos do que seria a realidade. </p> <div class="mw-heading mw-heading2"><h2 id="O_sistema_RGB_e_os_ecrãs/as_telas_do_computador"><span id="O_sistema_RGB_e_os_ecr.C3.A3s.2Fas_telas_do_computador"></span>O sistema RGB e os ecrãs/as telas do computador</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=RGB&veaction=edit&section=2" title="Editar secção: O sistema RGB e os ecrãs/as telas do computador" class="mw-editsection-visualeditor"><span>editar</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=RGB&action=edit&section=2" title="Editar código-fonte da secção: O sistema RGB e os ecrãs/as telas do computador"><span>editar código-fonte</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Uma aplicação comum do modelo de cores RGB é o ecrã/tela do computador ou display ou na televisão a cores em um tubo de raios catódicos, de <a href="/wiki/Cristal_l%C3%ADquido" title="Cristal líquido">cristal líquido</a> ou de <a href="/wiki/Plasma" title="Plasma">plasma</a>, como televisões ou monitores de computador. Cada pixel na tela pode ser representado no computador ou na interface do hardware (por exemplo, uma “placa de gráficos”) como valores para vermelho, verde e azul. Esses valores são convertidos em intensidades ou voltagens via correção-gama, para que as intensidades procuradas sejam reproduzidas nos displays com fidelidade. </p><p>Por usar uma combinação apropriada para as intensidades de <a href="/wiki/Vermelho" title="Vermelho">vermelho</a> (red), <a href="/wiki/Verde" title="Verde">verde</a> (green) e <a href="/wiki/Azul" title="Azul">azul</a> (blue), muitas outras cores podem ser representadas. Um adaptador de display típico do ano de 2007 utiliza até 24 bits de informação para cada <a href="/wiki/Pixel" title="Pixel">pixel</a>. Geralmente, a partição é de 8 bits para cada uma das cores (vermelho, verde e azul), dando um alcance de 256 possíveis valores, ou intensidades, para cada tom. Com este sistema, mais de 16 milhões (16.777.216 ou 256³) diferentes combinações de tons, <a href="/wiki/Satura%C3%A7%C3%A3o" title="Saturação">saturação</a> e <a href="/wiki/Brilho" class="mw-disambig" title="Brilho">brilho</a> podem ser especificados, mesmo que não sejam facilmente distinguidos. </p> <div class="mw-heading mw-heading2"><h2 id="Representação_numérica"><span id="Representa.C3.A7.C3.A3o_num.C3.A9rica"></span>Representação numérica</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=RGB&veaction=edit&section=3" title="Editar secção: Representação numérica" class="mw-editsection-visualeditor"><span>editar</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=RGB&action=edit&section=3" title="Editar código-fonte da secção: Representação numérica"><span>editar código-fonte</span></a><span class="mw-editsection-bracket">]</span></span></div> <table class="wikitable" style="float:right;margin-left:12px;"> <tbody><tr> <th colspan="2" rowspan="4"><small>amostra</small><br />cor</th> <th colspan="10"><b>RGB</b> </th></tr> <tr> <th colspan="3" rowspan="2">Gama 0-1</th> <th colspan="7">Gama 0-255 </th></tr> <tr> <th colspan="3">decimal</th> <th colspan="4">hexadecimal </th></tr> <tr> <th>R</th> <th>G</th> <th>B</th> <th>R</th> <th>G</th> <th>B</th> <th>R</th> <th>G</th> <th>B</th> <th><small>concatenado</small> </th></tr> <tr> <td bgcolor="#FFF"></td> <td><a href="/wiki/Branco" title="Branco">Branco</a></td> <td>1</td> <td>1</td> <td>1</td> <td>255</td> <td>255</td> <td>255</td> <td>FF</td> <td>FF</td> <td>FF</td> <td><code>#FFFFFF</code> </td></tr> <tr> <td bgcolor="#FF0"></td> <td><a href="/wiki/Amarelo" title="Amarelo">Amarelo</a></td> <td>1</td> <td>1</td> <td>0</td> <td>255</td> <td>255</td> <td><span style="visibility:hidden;color:transparent;">0</span><span style="visibility:hidden;color:transparent;">0</span>0</td> <td>FF</td> <td>FF</td> <td>00</td> <td><code>#FFFF00</code> </td></tr> <tr> <td bgcolor="#F0F"></td> <td><a href="/wiki/Magenta" title="Magenta">Magenta</a></td> <td>1</td> <td>0</td> <td>1</td> <td>255</td> <td><span style="visibility:hidden;color:transparent;">0</span><span style="visibility:hidden;color:transparent;">0</span>0</td> <td>255</td> <td>FF</td> <td>00</td> <td>FF</td> <td><code>#FF00FF</code> </td></tr> <tr> <td bgcolor="#F00"></td> <td><a href="/wiki/Vermelho" title="Vermelho">Vermelho</a></td> <td>1</td> <td>0</td> <td>0</td> <td>255</td> <td><span style="visibility:hidden;color:transparent;">0</span><span style="visibility:hidden;color:transparent;">0</span>0</td> <td><span style="visibility:hidden;color:transparent;">0</span><span style="visibility:hidden;color:transparent;">0</span>0</td> <td>FF</td> <td>00</td> <td>00</td> <td><code>#FF0000</code> </td></tr> <tr> <td bgcolor="#0FF"></td> <td><a href="/wiki/Ciano" title="Ciano">Ciano</a></td> <td>0</td> <td>1</td> <td>1</td> <td><span style="visibility:hidden;color:transparent;">0</span><span style="visibility:hidden;color:transparent;">0</span>0</td> <td>255</td> <td>255</td> <td>00</td> <td>FF</td> <td>FF</td> <td><code>#00FFFF</code> </td></tr> <tr> <td bgcolor="#0F0"></td> <td><a href="/wiki/Verde" title="Verde">Verde</a></td> <td>0</td> <td>1</td> <td>0</td> <td><span style="visibility:hidden;color:transparent;">0</span><span style="visibility:hidden;color:transparent;">0</span>0</td> <td>255</td> <td><span style="visibility:hidden;color:transparent;">0</span><span style="visibility:hidden;color:transparent;">0</span>0</td> <td>00</td> <td>FF</td> <td>00</td> <td><code>#00FF00</code> </td></tr> <tr> <td bgcolor="#00F"></td> <td><a href="/wiki/Azul" title="Azul">Azul</a></td> <td>0</td> <td>0</td> <td>1</td> <td><span style="visibility:hidden;color:transparent;">0</span><span style="visibility:hidden;color:transparent;">0</span>0</td> <td><span style="visibility:hidden;color:transparent;">0</span><span style="visibility:hidden;color:transparent;">0</span>0</td> <td>255</td> <td>00</td> <td>00</td> <td>FF</td> <td><code>#0000FF</code> </td></tr> <tr> <td bgcolor="#000"></td> <td><a href="/wiki/Preto" title="Preto">Preto</a></td> <td>0</td> <td>0</td> <td>0</td> <td><span style="visibility:hidden;color:transparent;">0</span><span style="visibility:hidden;color:transparent;">0</span>0</td> <td><span style="visibility:hidden;color:transparent;">0</span><span style="visibility:hidden;color:transparent;">0</span>0</td> <td><span style="visibility:hidden;color:transparent;">0</span><span style="visibility:hidden;color:transparent;">0</span>0</td> <td>00</td> <td>00</td> <td>00</td> <td><code>#000000</code> </td></tr> </tbody></table> <p>Uma cor no modelo de cores RGB pode ser descrita pela indicação da quantidade de vermelho, verde, e azul que contém. Cada uma pode variar entre o mínimo (completamente escuro) e máximo (completamente intenso). Quando todas as cores estão no mínimo, o resultado é preto. Se todas estão no máximo, o resultado é branco. Se todos os valores forem iguais ou muito próximos, a resultante é cinzento; à medida que um dos valores se afastar dos outros dois a cor resultante será um tom progressivamente mais “viva” e menos “pastel”. </p> <div class="mw-heading mw-heading3"><h3 id="Gama_0-255">Gama 0-255</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=RGB&veaction=edit&section=4" title="Editar secção: Gama 0-255" class="mw-editsection-visualeditor"><span>editar</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=RGB&action=edit&section=4" title="Editar código-fonte da secção: Gama 0-255"><span>editar código-fonte</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Uma das representações mais usuais para as cores é a utilização da escala de 0 a 255, frequentemente encontrada em computação pela conveniência de se guardar cada valor em 1 <i>byte</i> (8 <i>bits</i>). Daí que se usem nesta notação apenas valores discretos, com uma granularidade que, no entanto, é muito inferior à acuidade visual humana — já que 256<sup>3</sup> é superior a dezesseis milhões de combinações, cada uma identificando uma cor. </p><p>Estes três valores são habitualmente apresentados em números decimais ou em <a href="/wiki/Tripleto_hexadecimal" title="Tripleto hexadecimal">números hexadecimais</a> (e, neste caso, habitualmente identificados como tais por via do prefixo "#"). Sendo esta última base um submúltiplo de 256, a notação com dois algarismos para cada componente resulta numa <a href="/wiki/String" class="mw-redirect" title="String">sequência alfanumérica</a> de comprimento fixo =6, facilmente <a href="/wiki/Parsing" class="mw-redirect" title="Parsing">sequenciável</a> e por isso <a href="/wiki/Web_colors" class="mw-redirect" title="Web colors">usual em programas de edição de imagem</a>. Vai assim de 00 (mais escuro, =0) até FF (mais claro, =255). </p><p>Algumas sintaxes específicas (p.ex., <a href="/wiki/Cascading_Style_Sheets" title="Cascading Style Sheets">CSS</a>) admitem, por abreviatura, <i><a href="/wiki/String" class="mw-redirect" title="String">strings</a></i> de três caracteres interpretando-as pela duplicação de cada um — p.ex.: <code><span style="background-color:#FC3; color:{{{cor-texto}}}; border:;text-shadow: -1px 1px #999;; text-align:center;"> #FC3 </span></code> resulta em <code><span style="background-color:#FFCC33; color:{{{cor-texto}}}; border:;text-shadow: -1px 1px #999;; text-align:center;"> #FFCC33 </span></code> e não em <code><span style="background-color:#FC3000; color:{{{cor-texto}}}; border:;text-shadow: -1px 1px #999;; text-align:center;"> #FC3000 </span></code>. </p> <div class="mw-heading mw-heading3"><h3 id="Gama_0-1">Gama 0-1</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=RGB&veaction=edit&section=5" title="Editar secção: Gama 0-1" class="mw-editsection-visualeditor"><span>editar</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=RGB&action=edit&section=5" title="Editar código-fonte da secção: Gama 0-1"><span>editar código-fonte</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Outro sistema adoptado, absolutamente equivalente, usa valores de 0 a 1 para cada uma das três componentes, com valores decimais de precisão variável — e portanto “permitindo” um número ilimitado de valores. Estes podem ser expressos em percentagem (com conversão trivial), e os tripletos representando cada cor podem ser equacionados como vectores tridimensionais (com [R,G,B]≡[x,y,z], habitualmente), simplificando a sua manipulação matemática. Algumas linguagens de formatação e de programação usam esta notação (p.ex., <a href="/wiki/Second_Life#Programação" title="Second Life">LSL</a>) e outras suportam-na como equivalente à gama 0-255 decimal ou hexadecimal (p.ex., <a href="/wiki/Cascading_Style_Sheets" title="Cascading Style Sheets">CSS</a>). </p> <div class="mw-heading mw-heading2"><h2 id="Ligações_externas"><span id="Liga.C3.A7.C3.B5es_externas"></span>Ligações externas</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=RGB&veaction=edit&section=6" title="Editar secção: Ligações externas" class="mw-editsection-visualeditor"><span>editar</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=RGB&action=edit&section=6" title="Editar código-fonte da secção: Ligações externas"><span>editar código-fonte</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a rel="nofollow" class="external text" href="http://cssdeck.com/item/569/transitioning-background-colors-with-color-choosers">Mistura RGB - cssdeck.com</a></li> <li><cite class="citation web"><a rel="nofollow" class="external text" href="https://fernandomoura.dev/como-funcionam-os-monitores-de-led-lcd/">«Como funcionam os monitores de led / LCD»</a></cite><span title="ctx_ver=Z39.88-2004&rfr_id=info%3Asid%2Fpt.wikipedia.org%3ARGB&rft.btitle=Como+funcionam+os+monitores+de+led+%2F+LCD&rft.genre=unknown&rft_id=https%3A%2F%2Ffernandomoura.dev%2Fcomo-funcionam-os-monitores-de-led-lcd%2F&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook" class="Z3988"><span style="display:none;"> </span></span></li></ul> <div class="mw-heading mw-heading2"><h2 id="Ver_também"><span id="Ver_tamb.C3.A9m"></span>Ver também</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=RGB&veaction=edit&section=7" title="Editar secção: Ver também" class="mw-editsection-visualeditor"><span>editar</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=RGB&action=edit&section=7" title="Editar código-fonte da secção: Ver também"><span>editar código-fonte</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a href="/wiki/CMYK" title="CMYK">CMYK</a></li> <li><a href="/wiki/RYB" title="RYB">RYB</a></li> <li><a href="/wiki/HSV" title="HSV">HSV</a></li> <li><a href="/wiki/Tripleto_hexadecimal" title="Tripleto hexadecimal">HTML</a>/<a href="/wiki/Tripleto_hexadecimal" title="Tripleto hexadecimal">HEX</a></li></ul> <table class="noprint" style="border-top:none; border-bottom:none; background:transparent; color: inherit"><tbody><tr> <td style="text-align: center;"><span typeof="mw:File"><a href="/wiki/Ficheiro:Farm-Fresh_color_wheel.png" class="mw-file-description"><img alt="Ícone de esboço" src="//upload.wikimedia.org/wikipedia/commons/thumb/f/fb/Farm-Fresh_color_wheel.png/30px-Farm-Fresh_color_wheel.png" decoding="async" width="30" height="30" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/f/fb/Farm-Fresh_color_wheel.png 1.5x" data-file-width="32" data-file-height="32" /></a></span></td> <td><i>Este artigo sobre <a href="/wiki/Cor" title="Cor">cor</a> é um <a href="/wiki/Wikip%C3%A9dia:Esbo%C3%A7o" title="Wikipédia:Esboço">esboço</a>. Você pode ajudar a Wikipédia <b><span class="plainlinks"><a class="external text" href="https://pt.wikipedia.org/w/index.php?title=RGB&action=edit">expandindo-o</a></span></b>.</i><div class="plainlinks hlist navbar mini" style="position:absolute; right:15px; font-size:smaller; display:none;"><ul><li class="nv-ver"><a href="/wiki/Predefini%C3%A7%C3%A3o:Esbo%C3%A7o-cor" title="Predefinição:Esboço-cor"><abbr title="Ver esta predefinição">v</abbr></a></li><li class="nv-discutir"><a href="/w/index.php?title=Predefini%C3%A7%C3%A3o_Discuss%C3%A3o:Esbo%C3%A7o-cor&action=edit&redlink=1" class="new" title="Predefinição Discussão:Esboço-cor (página não existe)"><abbr title="Discutir esta predefinição">d</abbr></a></li><li class="nv-editar"><a class="external text" href="https://pt.wikipedia.org/w/index.php?title=Predefini%C3%A7%C3%A3o:Esbo%C3%A7o-cor&action=edit"><abbr title="Editar esta predefinição">e</abbr></a></li></ul></div></td> </tr></tbody></table> <ul class="noprint navigation-box" style="border-top: solid silver 1px; border-right: solid silver 1px; border-bottom:1px solid silver; border-left: solid silver 1px; padding:3px; background-color: #F9F9F9; text-align: center; margin-top:10px; margin-left: 0; clear: both;"><li style="display: inline;"><span style="white-space: nowrap; margin: auto 1.5em"><span style="margin-right: 0.5em"><span typeof="mw:File"><a href="/wiki/Ficheiro:Eight-colour-wheel-2D.png" title="Portal das cores"><img alt="" src="//upload.wikimedia.org/wikipedia/commons/thumb/d/dc/Eight-colour-wheel-2D.png/25px-Eight-colour-wheel-2D.png" decoding="async" width="25" height="25" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/d/dc/Eight-colour-wheel-2D.png/38px-Eight-colour-wheel-2D.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/d/dc/Eight-colour-wheel-2D.png/50px-Eight-colour-wheel-2D.png 2x" data-file-width="1100" data-file-height="1099" /></a></span></span> <span style="font-weight:bold"><a href="/wiki/Portal:Cores" title="Portal:Cores">Portal das cores</a></span></span></li> </ul>    </div><noscript><img src="https://login.wikimedia.org/wiki/Special:CentralAutoLogin/start?type=1x1" alt="" width="1" height="1" style="border: none; position: absolute;"></noscript> <div class="printfooter" data-nosnippet="">Obtida de "<a dir="ltr" href="https://pt.wikipedia.org/w/index.php?title=RGB&oldid=67289979">https://pt.wikipedia.org/w/index.php?title=RGB&oldid=67289979</a>"</div></div> <div id="catlinks" class="catlinks" data-mw="interface"><div id="mw-normal-catlinks" class="mw-normal-catlinks"><a href="/wiki/Especial:Categorias" title="Especial:Categorias">Categorias</a>: <ul><li><a href="/wiki/Categoria:Sistemas_de_cores" title="Categoria:Sistemas de cores">Sistemas de cores</a></li><li><a href="/wiki/Categoria:Acr%C3%B3nimos" title="Categoria:Acrónimos">Acrónimos</a></li></ul></div><div id="mw-hidden-catlinks" class="mw-hidden-catlinks mw-hidden-cats-hidden">Categorias ocultas: <ul><li><a href="/wiki/Categoria:!Artigos_que_carecem_de_fontes_desde_julho_de_2012" title="Categoria:!Artigos que carecem de fontes desde julho de 2012">!Artigos que carecem de fontes desde julho de 2012</a></li><li><a href="/wiki/Categoria:!Artigos_que_carecem_de_fontes_sem_indica%C3%A7%C3%A3o_de_tema" title="Categoria:!Artigos que carecem de fontes sem indicação de tema">!Artigos que carecem de fontes sem indicação de tema</a></li><li><a href="/wiki/Categoria:!Esbo%C3%A7os_sobre_cor" title="Categoria:!Esboços sobre cor">!Esboços sobre cor</a></li><li><a href="/wiki/Categoria:!Esbo%C3%A7os_maiores_que_5000_bytes" title="Categoria:!Esboços maiores que 5000 bytes">!Esboços maiores que 5000 bytes</a></li></ul></div></div> </div> </main> </div> <div class="mw-footer-container"> <footer id="footer" class="mw-footer" > <ul id="footer-info"> <li id="footer-info-lastmod"> Esta página foi editada pela última vez às 14h11min de 12 de janeiro de 2024.</li> <li id="footer-info-copyright">Este texto é disponibilizado nos termos da licença <a rel="nofollow" class="external text" href="https://creativecommons.org/licenses/by-sa/4.0/deed.pt">Atribuição-CompartilhaIgual 4.0 Internacional (CC BY-SA 4.0) da Creative Commons</a>; pode estar sujeito a condições adicionais. 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