Free color contrast checker

Check whether your text and background colors meet WCAG 2.2 contrast minimums. Runs in your browser; nothing is sent to us.

Sample body text

Large text sample

What the numbers mean

Normal text needs at least 4.5:1 (WCAG 1.4.3, level AA).
Large text (24px, or 18.66px bold) needs at least 3:1.
Buttons, inputs and icons need at least 3:1 against what is next to them (WCAG 1.4.11).
Level AAA asks for 7:1 (normal) and 4.5:1 (large).

Want the whole picture? This tool checks one thing. Our free snapshot scans your homepage with axe-core and shows your top 3 issues. No signup, no card. Not legal advice; no tool can promise legal compliance.