Color Contrast Checker
Check the contrast ratio between text and background colours against WCAG 2.2 AA and AAA, with fix suggestions.
Files never leave your device Instant results 100% free No sign-up
How to use the Color Contrast Checker
- Upload your image or start from the built-in options.
- Pick a preset, tweak framing, colours and text live.
- Download a ready-to-use, perfectly sized file.
Private & secure
Processing happens locally with JavaScript, Canvas and Web APIs.
No uploads, no storage, no account. Close the tab and it is gone.
Works on desktop and mobile in any modern browser.