Online Tool Base
Loading Tool...

Ensure Accessibility with Contrast Check

Readability first. The Contrast Check tool at Online Tool Base verifies if your text and background color combination meets WCAG accessibility standards.

WCAG Standards

  • AA Level: Minimum 4.5:1 ratio (Standard text).
  • AAA Level: Minimum 7:1 ratio (High quality).
  • Score: See the exact ratio (e.g. 12.5:1).

How to Use

  1. Select Text Color and Background Color.
  2. Check the Pass/Fail rating.
  3. Adjust colors until you pass the validation.