Contrast checker
Measures the contrast ratio of a text colour on a background and checks it against WCAG 2 AA and AAA for body text, large text and interface parts.
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- contrast
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Questions
What counts as large text?
24 px and up, or 18.66 px (14 pt) and up in bold.
Why is 4.49:1 a fail?
WCAG thresholds are exact: 4.49 does not round up to 4.5. The ratio here is truncated, never rounded up.