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

WCAG 2.1 is the standard used by EN 301 549, the European procurement rules, and you need to pass these success criteria to comply with the UK Public Sector Bodies (Websites and Mobile Applications) Accessibility Regulations 2018

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.

Empowering designers with beautiful and accessible color palettes based on WCAG Guidelines of text and background contrast ratios.

A few tips on how and when to use the alt attribute. Make sure the text is helpful and most importantly meaningful.

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.

yatil. Eric Eggert about web development & design.

Low-contrast font color and unreadable texts? To hell with them!