Large text preview
Normal text — the quick brown fox jumps over the lazy dog.
—contrast ratio
About the Color Contrast Checker
This free color contrast checker measures the contrast ratio between a text color and a background color and tells you whether it passes WCAG AA and AAA for normal and large text — essential for accessible, readable design.
It runs in your browser — nothing is uploaded.
How to use it
- Pick a text color and a background color
- See the contrast ratio and the AA / AAA pass or fail badges
- Read the live preview to judge it for yourself, then adjust the colors