Colour Contrast Checker (WCAG) — Free AA / AAA Test
Free WCAG colour contrast checker. Pick a text and background colour to see the contrast ratio and whether it passes WCAG AA and AAA for normal and large text, with a live preview.
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✓ NCERT / CBSE Aligned
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TL;DR: Free WCAG colour contrast checker. Pick a text and background colour to see the contrast ratio and whether it passes WCAG AA and AAA for normal and la…
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A free WCAG colour contrast checker. Pick a text and background colour to get the exact contrast ratio and see whether it passes WCAG AA and AAA — with a live preview.
WCAG contrast thresholds
- AA normal text — at least 4.5:1.
- AA large text (18px bold or 24px+) — at least 3:1.
- AAA (enhanced) — at least 7:1.
The ratio ranges from 1:1 (identical) to 21:1 (black on white). 100% free, in your browser. Browse all free tools.