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WCAG Contrast Checker
Check color contrast ratios for web accessibility compliance
Free to use, no watermarks, runs in your browser—nothing uploads to our servers
Normal Text
This is how your text will look with these colors.
Large Text (18pt+)
Contrast Ratio
21.00:1
WCAG 2.1 Compliance
AA - Normal Text (4.5:1)
Required for body text
Pass
AA - Large Text (3:1)
Required for 18pt+ or 14pt+ bold
Pass
AAA - Normal Text (7:1)
Enhanced accessibility
Pass
AAA - Large Text (4.5:1)
Enhanced for large text
Pass
Guidelines
- • AA Level is the minimum for web content (required by law in many countries)
- • AAA Level provides enhanced accessibility for users with vision impairments
- • Large text is defined as 18pt+ (24px+) or 14pt+ (18.5px+) bold
- • Higher contrast ratios improve readability for everyone
Report a bug
If this tool misbehaves, share a quick summary so we can investigate. We include the tool URL automatically—no need to copy and paste.