WCAG Color Contrast Checker
Test your text and background color combination to verify contrast ratios against official WCAG AA and AAA accessibility standards.
This is how your text looks
Smaller secondary text example to check legibility under normal font weights.
Calculated relative luminance contrast ratio
About WCAG Color Contrast Guidelines
The Web Content Accessibility Guidelines (WCAG) define requirements for designers and developers to improve accessibility for people with disabilities. Ensuring sufficient color contrast helps users with low vision read text content comfortably.
Level AA requires a contrast ratio of at least 4.5:1 for normal text and 3:1 for large text. Level AAA requires higher standards: at least 7:1 for normal text and 4.5:1 for large text.
Frequently Asked Questions
Got questions about the Wcag Color Contrast Checker? Find quick answers below.
Is the Wcag Color Contrast Checker tool free to use?
Yes, our Wcag Color Contrast Checker tool is 100% free with to use on UtilityGlen with no hidden fees, subscriptions, or usage limits required.
Does the Wcag Color Contrast Checker tool upload my data?
No, your data never leaves your browser. All text conversion and decoding are executed locally on your device for total privacy.
Can I use the Wcag Color Contrast Checker tool on mobile?
Yes, our Wcag Color Contrast Checker tool is fully responsive and optimized to work seamlessly on smartphones, tablets, and desktop browsers alike.