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Check Color Contrast WCAG

Evaluates whether two text and background colors meet the contrast thresholds for normal text.

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Check Color Contrast WCAG: what you need to know

Evaluates whether two text and background colors meet the contrast thresholds for normal text.

Enter both colors in HEX format with three or six digits, run, and view the ratio and results for AA and AAA. This test measures a pair of flat colors. It does not audit a complete page, image backgrounds, or all accessibility criteria.

How to use this tool

  1. Open Check Color Contrast WCAG in Prisma Space.
  2. Enter both colors in HEX format with three or six digits, run, and view the ratio and results for AA and AAA.
  3. Review the result before copying, downloading, or using it.
Open Contrast Checker ↗

Common questions

What does a 21:1 ratio mean?

It is the maximum contrast between black and white in this relative luminance calculation.

What should I review before using the result?

This test measures a pair of flat colors. It does not audit a complete page, image backgrounds, or all accessibility criteria.