# Colour Contrast Analyser

Canonical URL: https://colorcurio.us/library/colour-contrast-analyser
Source type: Library entry
Resource URL: https://github.com/ThePacielloGroup/CCAe
Added: 2026-09-27

## Summary

A free Windows and macOS app: eyedrop any two on-screen colors for a WCAG contrast verdict.

Handles transparency and includes a color-blindness simulator, so it works on mockups and running apps alike.

- Resource: [Colour Contrast Analyser](https://github.com/ThePacielloGroup/CCAe)
- By: TPGi
- Kind: accessibility (tool)
- Level: beginner
- Tags: accessibility, designer, developer, interactive, desktop

## In collections

- [Colorblind-Safe Workflows](https://colorcurio.us/library/collections/colorblind-safe-workflows)

[Back to the library](https://colorcurio.us/library)