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contrast checker

Check a text and background pair against WCAG 2.2 and APCA at the same time. Runs entirely in your browser, nothing is uploaded, no account needed.

Large text at 24px

Body text at 16px. The quick brown fox jumps over the lazy dog, and then reads the contrast report underneath.

6.96WCAG 2.2 ratio
AA, normal text
4.5:1pass
AA, large text
3:1pass
AAA, normal text
7:1fail
AAA, large text
4.5:1pass
AA, UI components
3:1pass
-47.4APCA Lc

Clears Lc 45, minimum for larger text. The sign is polarity: this pairing is light on dark.

APCA weights lightness perceptually rather than as a luminance ratio, so it disagrees with WCAG most on dark backgrounds and on thin type. Where the two disagree, treat the stricter one as the answer.