Color contrast checker

Measure text contrast and check the WCAG AA and AAA thresholds.

WCAG 2.2

10.60 : 1

Pass and fail are based on the unrounded contrast ratio.

Normal textLarge text
AAPassPass
AAAPassPass

Large text is at least 18 pt, or 14 pt in bold.

Your inputs stay on this device.

How to use
  1. Choose a text color and a background color.
  2. Read the ratio and look at the sample text.
  3. Check the AA or AAA result for your text size.

The normal and large text rows use different thresholds. The pass result is based on the ratio before rounding.