Top 6 color-contrast open source projects

A collection of useful tools for accessibility testing and debugging in the browser, online and desktop

Un sélecteur de styles, léger et open source, pour permettre aux personnes en situation de handicap d’adapter votre site à certains de leurs besoins.

Check the contrast between different colour combinations against WCAG standards

Sketch Plugin to check and adjust color contrast accessibility with live preview and sliders. Endorsed by Sketch.

APCA (Accessible Perceptual Contrast Algorithm) is a new method for predicting contrast for use in emerging web standards (WCAG 3) for determining readability contrast. APCA is derived form the SAPC (S-LUV Advanced Predictive Color) which is an accessibility-oriented color appearance model designed for self-illuminated displays.

A Sketch plugin that let’s you test an entire color palette against the WCAG 2.0 contrast guidelines.