Color Contrast Checker

Check color contrast ratios for WCAG compliance online for free. Test text and background color combinations for accessibility standards.

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Coming SoonDeveloper Tools

The full version of Color Contrast Checker is being built right now. We add new fully functional tools every week. In the meantime, you can use the basic workspace below.

About Color Contrast Checker

Check color contrast ratios for WCAG compliance online for free. Test text and background color combinations for accessibility standards.

This tool is completely free and runs 100% in your browser. Your data is never uploaded to any server — everything is processed locally on your device for maximum privacy and speed.

About Color Contrast Checker

Check color contrast ratios for WCAG compliance online for free. Test text and background color combinations for accessibility standards.

Features

  • 100% free with no sign-up required
  • Runs entirely in your browser for full privacy
  • No data stored, no files uploaded to servers
  • Works on desktop and mobile devices