Color contrast checker (WCAG AA/AAA)

The quick brown fox jumps over the lazy dog.
Contrast ratio
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WCAG AA (normal)
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WCAG AA (large)
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WCAG AAA (normal)
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WCAG AAA (large)
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About this tool

Color contrast checker (WCAG AA/AAA) is a single-purpose utility on instant.tw, a free toolbox of calculators, converters, generators, and quick lookups. Everything works in your browser — nothing is uploaded, nothing is stored on a server unless explicitly noted.

Category: Color & Design. Browse more Color & Design tools.