Color Contrast Checker
Check opaque text and background colors against WCAG contrast thresholds.
Free browser processing. Your input is not uploaded.
WCAG AA: 4.5:1 for normal text, 3:1 for large text; AAA: 7:1 and 4.5:1. Large means at least 18 pt or 14 pt bold. Checks contrast, not overall accessibility.
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About this tool
Check opaque text and background colors against WCAG contrast thresholds. WCAG AA: 4.5:1 for normal text, 3:1 for large text; AAA: 7:1 and 4.5:1. Large means at least 18 pt or 14 pt bold. Checks contrast, not overall accessibility.
Frequently asked questions
What does Color Contrast Checker do?
Check opaque text and background colors against WCAG contrast thresholds.
Do I need an account?
No. This free tool can be used without creating an account.
Where is my input processed?
This tool processes its input in your browser. Tool input is not uploaded for processing. General site usage statistics are separate; see the privacy policy.