Generate colors based on a desired contrast ratio

Advanced color manipulation for iOS.

WhoCanUse is a tool that brings attention and understanding to how color contrast can affect different people with visual impairments.

The APCA version, to be licensed for use with guidelines: W3/AGWG.

Contrast-Finder finds correct color contrasts (background / foreground) for web accessibility (a11y, WCAG, RGAA). https://app.contrast-finder.org

ac-colors is a reactive JavaScript color library that can freely convert between RGB, HSL, HEX, XYZ, LAB, LCHab, LUV, and LCHuv, as well as handle random color generation and contrast ratio calculation.

A Sketch plugin to show a pass/fail type contrast report.

Helpers for generating accessible color pairs

Learn about accessible button contrast then generate your own accessible button color palette

Figma plugin for displaying the contrast level and font size recommendations according to the APCA method

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

🎨 Automated color contrast for text over images

Allows you to select layers in Sketch and get realtime feedback about the contrast ratio

🔳🔲 R package: check accessibility of color contrasts

Generate a consistent color from a string, or generate a random color from a given color. Both accessible, contrast safe, WCAG success criteria 1.4.3 compliant.

Small SCSS helper function package

A color contrast tool for desktop & web

🌈 Generate the nearest accessible color

Apple framework for calculating color contrast ratios, WCAG conformance, and high contrast color values (UIColor & NSColor).

A tool to check for color contrast using APCA