Color Contrast Checker

Check color contrast ratios for WCAG 2.1 accessibility compliance. Instantly verify AA and AAA pass/fail status for normal and large text.

Contrast Ratio

15.21:1

WCAG AA

Normal TextLarge Text

WCAG AAA

Normal TextLarge Text

Preview

The quick brown fox jumps over the lazy dog. This is normal-sized body text.

Large Text Heading

About WCAG Contrast

The Web Content Accessibility Guidelines (WCAG) 2.1 define minimum contrast ratios to ensure text is readable for users with visual impairments.

  • WCAG AA requires a contrast ratio of at least 4.5:1 for normal text and 3:1 for large text (18pt or 14pt bold).
  • WCAG AAA requires a contrast ratio of at least 7:1 for normal text and 4.5:1 for large text.
  • Large text is defined as 18pt (24px) or larger, or 14pt (approximately 18.67px) bold or larger.