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🌓 Color Contrast Checker

Check color contrast ratios for accessibility. Ensure text and background combinations meet WCAG AA/AAA standards.

Color Contrast Checker

Test the contrast ratio between text and background colors to ensure readability and meet WCAG accessibility standards. This is essential for creating accessible websites and user interfaces.

Contrast ratio
18.88 : 1

Normal text

The quick brown fox jumps over the lazy dog.

Pass AA

Large text (≥18pt)

Quick brown fox

Pass AA Large

AAA standard

Higher contrast requirement

Pass AAA

WCAG thresholds: AA (4.5:1 for normal text, 3:1 for large text) and AAA (7:1 for both). Meeting these ensures your content is accessible to users with visual impairments or low vision.

Practical use cases

  • Audit UI components during design reviews.
  • Check brand palettes against accessibility guidelines.
  • Verify on-the-fly colour tweaks before deploying.

Contrast tips

  • Test hover and focus states, not just static colours.
  • Adjust both text weight and colour—darker fonts often need slightly lighter backgrounds.
  • Copy the ratio when documenting accessibility audits or QA tickets.

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👁️Color Blindness Simulator

Upload an image and preview how it looks for different color vision deficiencies.

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Color Contrast Checker - WCAG AA & AAA Compliance