🎨 Color & Design Suite

Contrast Checker

Test color contrast ratios against WCAG 2.1 AA and AAA accessibility standards

Sample Headline Text (Large Text)

This is a preview of normal body text rendering over the selected background color. Ensure your content is legible for all users.

Contrast Ratio
5.93:1
Normal Text AA
✓ PASS
Large Text AA
✓ PASS
Normal Text AAA
✗ FAIL

About Contrast Checker

Contrast Checker calculates the relative luminance contrast ratio between foreground and background colors in accordance with WCAG 2.1 accessibility guidelines.

How to Use

  1. Choose Text and Background: Pick your text and background colors via the swatches or hex inputs.
  2. Review Contrast Ratio: Check the calculated numeric ratio (from 1:1 up to 21:1).
  3. Verify WCAG Status: Check compliance badges for AA and AAA levels for regular and large text.

Key Features & Benefits

Ensuring accessible color contrast guarantees that users with visual impairments or color vision deficiencies can comfortably navigate your website.

Frequently Asked Questions

What contrast ratio is required for WCAG AA compliance?

For normal text, a minimum contrast ratio of 4.5:1 is required. For large text (18pt or 14pt bold), a minimum ratio of 3.0:1 is required.

What is the highest possible contrast ratio?

21:1, which is achieved between pure black (#000000) and pure white (#FFFFFF).