Color Contrast Checker
Check WCAG AA/AAA contrast ratios between two colors.
Preview text
The quick brown fox jumps over the lazy dog.
Contrast ratio: 4.23:1
About this tool
Check color contrast ratios against WCAG AA and AAA guidelines. Improve accessibility for text, buttons, and UI components.
- Live contrast ratio calculation
- AA/AAA pass-fail checks
- Preview text on your chosen colors
Prefer a walkthrough? Read the Color Contrast Checker guide.
Guides
Learn the workflow, then jump back into the free tools
Guide for this tool
How to Use Color Contrast Checker
Check WCAG AA/AAA contrast ratios between two colors. A practical Toolara guide with tips, workflow advice, and links to the free online tool.
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