Introduction to Java Programming - Free Computers Video Lectures
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It is a tool for checking foreground and background color combinations of all DOM elements and determining if they provide sufficient contrast when viewed by someone having color deficits. All the tests are based on the algorithms suggested by the World Wide Web Consortium (W3C). Read more... Luminosity Constrast Ratio (WCAG 2.0) (L1+.05) / (L2+.05) where L is luminosity and is defined as .2126*R + .7152*G + .0722B using linearised R, G, and B values.