Color Contrast Checker
WCAG contrast ratios for text and UI — with a live preview you can actually read.
Runs locally — nothing you enter leaves your device
Colors
Contrast ratio
—Ratio
—AA normal text (≥4.5)
—AA large text (≥3)
—AAA normal text (≥7)
—AAA large text (≥4.5)
Live preview
Lighter color goes on top when computing the ratio, regardless of which field it came from.