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Isihloli soMahluko woMbala
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Khetha umbala usebenzisa isikhethi sombala sokubhaliweyo kunye nombala ongasemva okanye ngenisa umbala ngefomathi ye-RGB hexadecimal (umzekelo, #259 okanye #2596BE). Uyakwazi ukunyenyisa isilayida ukukhetha umbala. I-Web Content Accessibility Guidelines (WCAG) inesikhokelo esithile sokunceda ukuba isicatshulwa sifundeke kubasebenzisi ababonayo. Le migaqo isebenzisa i-algorithm ethile ukwenza imephu yendibaniselwano yemibala ibe yimilinganiselo ethelekisekayo. Isebenzisa le fomyula, iWCAG ithi umlinganiselo we-4.5:1 wombala wokuchasana nombhalo kunye nemvelaphi yawo yanele kumbhalo oqhelekileyo (umzimba), kunye nombhalo omkhulu (18+ pt rhoqo, okanye 14+ pt bold) kufuneka ubuncinane ube ne-3: 1 umbala wokuchasana nomlinganiselo.