WCAG Contrast Checker
Validate WCAG 2.1 AA and AAA accessibility standards, simulate color blindness conditions, and discover auto-adjusted compliant color recommendations.
Color Pickers
Readable Header Elements
Standard body copy, paragraphs, and descriptions should satisfy WCAG AA (4.5:1) to guarantee comfortable readability across all lighting environments and devices.
WCAG 2.1 Verification Checklist
Frequently Asked Questions
What is the minimum WCAG AA contrast ratio?
WCAG 2.1 Level AA requires a contrast ratio of at least 4.5:1 for normal body text and 3:1 for large text (18pt or 14pt bold) and graphical UI components.
What is the WCAG AAA contrast standard?
Level AAA represents enhanced accessibility, requiring a minimum contrast ratio of 7.0:1 for normal text and 4.5:1 for large typography.
How does the color blindness simulator work?
The simulator recalculates color perception mathematically to model Protanopia (red-weak), Deuteranopia (green-weak), Tritanopia (blue-weak), and Achromatopsia (monochromacy).