A macOS app for quick access to WCAG color contrast ratios → https://itunes.apple.com/de/app/contrast-color-accessibility/id1254981365?l=en&mt=12

Colors that look and work great for everyone

The Colour Contrast Analyser (CCA) helps you determine the legibility of text and the contrast of visual elements, such as graphical controls and visual indicators.

For people with impaired vision, we are required to ensure that there is a minimum amount of contrast between our foreground and background colors. formulas for determining optimum color contrast. W3C's specification on color contrast... hp color palette. style sheet text colors. style sheet text colors.