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WCAG AA / AAA Execution time: Instant

Color Contrast Ratio Checker (WCAG 2.1)

Ensure your web colors are readable and accessible to all users. Calculates exact contrast ratios (e.g. 7.5:1) and checks compliance against WCAG 2.1 AA and AAA ratings.

Privacy Guaranteed

All processing occurs locally in client browser memory.

No API Limits

Run audits and schema generators as many times as you need.

Copy-Paste Ready

Get validated output ready for direct production deployment.