Color Contrast Checker
Test your color combinations for WCAG 2.1 AA and AAA accessibility compliance. See live preview and pass/fail results.
Contrast Ratio
21.00:1
Excellent
Heading Text Preview
This is how your large text (18px+ bold or 24px+ regular) will look with these colors.
This is normal body text (under 18px). For this size, WCAG requires a higher contrast ratio for accessibility compliance. Make sure your text is easy to read at all sizes.
WCAG AA
WCAG AAA
What is WCAG?
WCAG (Web Content Accessibility Guidelines) sets standards for making web content accessible to people with disabilities. Level AA is the minimum recommended standard. Level AAA is the highest level of accessibility. Large text is defined as 18px bold or 24px regular and above.
Why Color Contrast Matters
About 300 million people worldwide have color vision deficiency. Poor contrast makes text unreadable for many users and can violate accessibility laws. Good contrast also improves readability for everyone, especially on mobile devices in bright sunlight.
Accessibility and SEO Connection
Google evaluates user experience signals when ranking pages. Accessible websites have better engagement metrics, lower bounce rates, and reach a wider audience. Many countries now have legal requirements for web accessibility, making compliance both a legal and business necessity.
Frequently Asked Questions
WCAG (Web Content Accessibility Guidelines) requires minimum contrast ratios between text and background colors so people with visual impairments can read your content. Level AA requires 4.5:1 for normal text and 3:1 for large text.
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