Contrast Checker
Check color contrast ratio against WCAG 2.1 accessibility guidelines (AA & AAA compliance).
Large Heading Text Sample
This is standard body copy to evaluate readability and contrast. Good contrast ensures readability for users with low vision, aging eyes, or when reading under bright sunlight.
Color Science & Standards
Conversions follow standard sRGB color space and W3C / WCAG 2.1 accessibility guidelines.
How to Use Contrast Checker
Pick your Text (Foreground) color.
Pick your Background color.
View the exact Contrast Ratio (e.g. 7.42:1).
Check the compliance badges for Normal Text, Large Text, and Graphical UI components.
Frequently Asked Questions
What is the minimum contrast ratio required by WCAG AA?
WCAG Level AA requires a contrast ratio of at least 4.5:1 for normal body text and 3:1 for large text (at least 18pt or 14pt bold) and active UI components.
What does WCAG AAA require?
Level AAA is the highest accessibility benchmark, requiring 7:1 for normal body text and 4.5:1 for large text.
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