{"id":112,"date":"2019-11-21T17:47:47","date_gmt":"2019-11-21T15:47:47","guid":{"rendered":"http:\/\/disseny-test.uoc.edu\/materials\/taller-color\/?page_id=112"},"modified":"2020-02-20T16:49:35","modified_gmt":"2020-02-20T14:49:35","slug":"3-1-introduccio","status":"publish","type":"page","link":"http:\/\/disseny-test.uoc.edu\/materials\/taller-color\/3-1-introduccio\/","title":{"rendered":"3.1. Introducci\u00f3"},"content":{"rendered":"<div class=\"featured featured-blue\"><p>El cercle crom\u00e0tic \u00e9s la representaci\u00f3 de la part de les longituds d\u2019ona de l\u2019espectre electromagn\u00e8tic que el nostre sistema de percepci\u00f3 visual ens dona la capacitat de recon\u00e8ixer i \u00e9s una part fonamental de la teoria del color.<\/p>\n<\/div>\n<p>La comprensi\u00f3 dels colors en l\u2019era moderna va venir de mans d\u2019Isaac Newton quan va posar un prisma a la finestra i la llum el va travessar i es va refractar l\u2019espectre de colors a la paret del fons. Va ser llavors quan Newton va comprendre la relaci\u00f3 entre els colors i la llum.<\/p>\n<figure id=\"attachment_224\" aria-describedby=\"caption-attachment-224\" style=\"width: 450px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" class=\"wp-image-224\" src=\"http:\/\/disseny-test.uoc.edu\/materials\/taller-color\/wp-content\/uploads\/sites\/18\/2020\/02\/PID_00267653_14_uoc.png\" alt=\"\" width=\"450\" height=\"341\" \/><figcaption id=\"caption-attachment-224\" class=\"wp-caption-text\">Figura 12<br \/>Font: autor desconegut<\/figcaption><\/figure>\n<p>Una de les seves aportacions en el m\u00f3n de l\u2019art va ser la disposici\u00f3 dels colors obtinguts al voltant d\u2019un <strong>cercle crom\u00e0tic<\/strong>. Va situar els colors llum primaris (<strong>vermell groc i blau<\/strong>) enfront dels seus complementaris, que se situen en una posici\u00f3 diametralment oposada i representen un nivell de contrast molt elevat: el <strong>taronja<\/strong> \u00e9s el complementari del blau; el groc, del <strong>violeta<\/strong> i el vermell, del <strong>verd<\/strong>. Al cercle crom\u00e0tic tamb\u00e9 podem trobar-hi els sis <strong>colors terciaris<\/strong>.<\/p>\n<figure id=\"attachment_479\" aria-describedby=\"caption-attachment-479\" style=\"width: 500px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" class=\"wp-image-479\" src=\"http:\/\/disseny-test.uoc.edu\/materials\/taller-color\/wp-content\/uploads\/sites\/18\/2020\/02\/PID_00267653_15.jpg\" alt=\"\" width=\"500\" height=\"508\" \/><figcaption id=\"caption-attachment-479\" class=\"wp-caption-text\">Figura 13<br \/>Font: G. Ambrose; P. Harris (2006). <em>Color<\/em> (p\u00e0g. 19). Barcelona: Editorial Parramon.<\/figcaption><\/figure>\n<p>Els <strong>colors primaris<\/strong> no es poden aconseguir mitjan\u00e7ant la mescla d\u2019altres colors o pigments. S\u00f3n l\u2019origen de tots els milions de colors que es poden representar: hist\u00f2ricament, en les diverses versions del cercle crom\u00e0tic, sovint s\u2019assenyalen el vermell, el groc i el blau com a primaris, encara que, a efectes pr\u00e0ctics, diferenciem entre els primaris llum i els primaris pigments. El vermell, el blau i el verd en el sistema de <strong>colors llum<\/strong>, o el <strong>cian<\/strong>, el <strong>magenta<\/strong> i el <strong>groc<\/strong> en el <strong>sistema de pigments<\/strong>.<\/p>\n<figure id=\"attachment_480\" aria-describedby=\"caption-attachment-480\" style=\"width: 300px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" class=\"wp-image-480 size-medium\" src=\"http:\/\/disseny-test.uoc.edu\/materials\/taller-color\/wp-content\/uploads\/sites\/18\/2020\/01\/PID_00267653_16-300x295.jpg\" alt=\"\" width=\"300\" height=\"295\" srcset=\"http:\/\/disseny-test.uoc.edu\/materials\/taller-color\/wp-content\/uploads\/sites\/18\/2020\/01\/PID_00267653_16-300x295.jpg 300w, http:\/\/disseny-test.uoc.edu\/materials\/taller-color\/wp-content\/uploads\/sites\/18\/2020\/01\/PID_00267653_16-768x755.jpg 768w, http:\/\/disseny-test.uoc.edu\/materials\/taller-color\/wp-content\/uploads\/sites\/18\/2020\/01\/PID_00267653_16-1024x1006.jpg 1024w, http:\/\/disseny-test.uoc.edu\/materials\/taller-color\/wp-content\/uploads\/sites\/18\/2020\/01\/PID_00267653_16.jpg 1462w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><figcaption id=\"caption-attachment-480\" class=\"wp-caption-text\">Figura 14. Sistema de colors llum. Primaris additius<br \/>Font: G. Ambrose; P. Harris (2006). <em>Color<\/em> (p\u00e0g. 17). Barcelona: Editorial Parramon.<\/figcaption><\/figure>\n<figure id=\"attachment_482\" aria-describedby=\"caption-attachment-482\" style=\"width: 300px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" class=\"wp-image-482 size-medium\" src=\"http:\/\/disseny-test.uoc.edu\/materials\/taller-color\/wp-content\/uploads\/sites\/18\/2020\/01\/PID_00267653_16_sostr-300x295.jpg\" alt=\"\" width=\"300\" height=\"295\" srcset=\"http:\/\/disseny-test.uoc.edu\/materials\/taller-color\/wp-content\/uploads\/sites\/18\/2020\/01\/PID_00267653_16_sostr-300x295.jpg 300w, http:\/\/disseny-test.uoc.edu\/materials\/taller-color\/wp-content\/uploads\/sites\/18\/2020\/01\/PID_00267653_16_sostr-768x755.jpg 768w, http:\/\/disseny-test.uoc.edu\/materials\/taller-color\/wp-content\/uploads\/sites\/18\/2020\/01\/PID_00267653_16_sostr-1024x1006.jpg 1024w, http:\/\/disseny-test.uoc.edu\/materials\/taller-color\/wp-content\/uploads\/sites\/18\/2020\/01\/PID_00267653_16_sostr.jpg 1462w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><figcaption id=\"caption-attachment-482\" class=\"wp-caption-text\">Figura 15. Sistema de colors pigments. Primaris subtractius<br \/>Font: G. Ambrose; P. Harris (2006). <em>Color<\/em> (p\u00e0g. 17). Barcelona: Editorial Parramon.<\/figcaption><\/figure>\n<p>Aix\u00ed doncs, quan dos d\u2019aquests colors es combinen amb la mateixa proporci\u00f3 donen lloc als <strong>colors secundaris<\/strong>. \u00c9s d\u2019aquesta manera que obtenim el <strong>verd<\/strong>, el <strong>taronja<\/strong> i el <strong>violeta<\/strong>. Finalment, de la mescla d\u2019un color primari amb un de secundari disposats al costat mateix en el cercle crom\u00e0tic i a parts iguals se\u2019n derivar\u00e0 un <strong>color terciari<\/strong>.<\/p>\n<figure id=\"attachment_484\" aria-describedby=\"caption-attachment-484\" style=\"width: 500px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" class=\"wp-image-484\" src=\"http:\/\/disseny-test.uoc.edu\/materials\/taller-color\/wp-content\/uploads\/sites\/18\/2020\/02\/PID_00267653_18.jpg\" alt=\"\" width=\"500\" height=\"477\" \/><figcaption id=\"caption-attachment-484\" class=\"wp-caption-text\">Figura 16<br \/>Cercle crom\u00e0tic d&#8217;Itten (1961). Font: <a href=\"https:\/\/es.wikipedia.org\/wiki\/Archivo:Farbkreis_Itten_1961_RYB.svg\" target=\"_blank\" rel=\"noopener\">https:\/\/es.wikipedia.org\/wiki\/Archivo:Farbkreis_Itten_1961_RYB.svg<\/a><\/figcaption><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>La comprensi\u00f3 dels colors en l\u2019era moderna va venir de mans d\u2019Isaac Newton quan va posar un prisma a la finestra i la llum el va travessar i es va refractar l\u2019espectre de colors a la paret del fons. Va ser llavors quan Newton va comprendre la relaci\u00f3 entre els colors i la llum. Una [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"inline_featured_image":false},"acf":[],"_links":{"self":[{"href":"http:\/\/disseny-test.uoc.edu\/materials\/taller-color\/wp-json\/wp\/v2\/pages\/112"}],"collection":[{"href":"http:\/\/disseny-test.uoc.edu\/materials\/taller-color\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"http:\/\/disseny-test.uoc.edu\/materials\/taller-color\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"http:\/\/disseny-test.uoc.edu\/materials\/taller-color\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/disseny-test.uoc.edu\/materials\/taller-color\/wp-json\/wp\/v2\/comments?post=112"}],"version-history":[{"count":18,"href":"http:\/\/disseny-test.uoc.edu\/materials\/taller-color\/wp-json\/wp\/v2\/pages\/112\/revisions"}],"predecessor-version":[{"id":639,"href":"http:\/\/disseny-test.uoc.edu\/materials\/taller-color\/wp-json\/wp\/v2\/pages\/112\/revisions\/639"}],"wp:attachment":[{"href":"http:\/\/disseny-test.uoc.edu\/materials\/taller-color\/wp-json\/wp\/v2\/media?parent=112"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}