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.

Inspect the contrast in color combinations, making sure to comply with the accessibility guidelines established by WCAG.

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

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

Accessibility assistant for all your basic needs. Serves as a linter for compliant color contrast and type based on WCAG 2.1. Thanks to Ale Muñoz for his support and docs!

♿️ A color checker contrast built with React and TypeScript.

Checks the color contrast of your color design based on Web Content Accessibility Guidelines (WCAG)

Command line tool to check the contrast between two colours against WCAG standards

Make sure your colors pass accessibility standards with this handy tool.

A color contrast control for use with the WordPress Customizer.

Contrast checking in vanilla js (and jQuery)

Discover the perfect color contrast for your website with my user-friendly Color Contrast Checker tool. Improve accessibility, enhance readability, and ensure your design complies with WCAG standards for a seamless user experience.

Check your color palette for accessible combinations

Color Contrast Checker

Color Contrast Checker - An accessibility checker tool for validating the color contrast based on WCAG 2.0 and WCAG 2.1 standards.

Color contrast tool for WCAG 3 APCA compliance

A SCSS function that returns a text color (black or white) based on the provided background color.

A colour contrast checker where you can check your app's colour theme in one click!

Check the contrast ratio for multiple background and foreground colors to ensure compliance with WCAG.