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Color Contrast and Palette Checker

Check text contrast with the WCAG 2.2 contrast-ratio formula.

  1. 1Enter input
  2. 2Set options
  3. 3Get results

This calculator runs in your browser. Nothing is sent to a server.

How it works

Processing stays in this browser tab. Source files are not uploaded. Export is a new copy; originals are not overwritten.

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