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Color
Free Online Color Contrast Checker — QuizOxa Tools
Evaluate background and foreground color pairings to verify readability. Our contrast checker computes the relative luminance contrast ratio, comparing against World Wide Web Consortium (W3C) Web Content Accessibility Guidelines (WCAG) AA and AAA specifications.
Contrast Ratio
3.96 : 1
Sample Preview Text
The quick brown fox jumps over the lazy dog.
WCAG AA Normal Text (Min 4.5:1)FAIL
WCAG AA Large Text (Min 3:1)PASS
WCAG AAA Normal Text (Min 7:1)FAIL
WCAG AAA Large Text (Min 4.5:1)FAIL
Common questions
What contrast ratio is required for WCAG AA?
Under WCAG AA guidelines, normal body text must have a minimum contrast ratio of 4.5:1, while larger headers (18pt+ or bold 14pt+) require at least 3:1.
What contrast ratio is required for WCAG AAA?
WCAG AAA requires a minimum contrast ratio of 7:1 for normal body text and 4.5:1 for large text headings.