Color Contrast Checker

Text Color
Background Color
Live Preview
Sample Text Content
Normal Text (16px)

This is how normal text would appear with these colors. Check readability here.

Large Text (24px)

Large heading text example

Contrast Analysis
21:1
WCAG AA
Normal Text: Pass
Large Text: Pass
WCAG AAA
Normal Text: Pass
Large Text: Pass
WCAG Guidelines:
• AA Normal Text: 4.5:1 minimum
• AA Large Text: 3:1 minimum
• AAA Normal Text: 7:1 minimum
• AAA Large Text: 4.5:1 minimum
Common Combinations
Black on White
White on Black
Blue Links
Dark Gray on Light
White on Blue
White on Green

Understanding Color Contrast & Accessibility

WCAG Guidelines

The Web Content Accessibility Guidelines (WCAG) provide standards for making web content accessible to people with disabilities, including those with visual impairments.

Compliance Levels:
  • AA (Minimum): 4.5:1 for normal text, 3:1 for large text
  • AAA (Enhanced): 7:1 for normal text, 4.5:1 for large text

Why Contrast Matters

  • Improves readability for all users
  • Essential for users with visual impairments
  • Better usability in various lighting conditions
  • Legal compliance requirements
  • Improved user experience

Best Practices

  • Always aim for AA compliance as a minimum
  • Test colors in different lighting conditions
  • Consider color blindness when choosing palettes
  • Use tools to verify compliance automatically
  • Provide alternative ways to convey information beyond color