$ tpt --version 1.0
tpt
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online
01 Jan 1970
00:00:00
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/contrast-checker

Contrast Checker

Check and fix WCAG colour contrast ratios between foreground and background

all tools

Large Text (24px+)

Normal text at 16px. The quick brown fox jumps over the lazy dog.

Small text at 14px for fine print and captions.

Contrast Ratio
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About WCAG Contrast Requirements
  • AA Normal: 4.5:1 minimum for text smaller than 18pt (or 14pt bold)
  • AA Large: 3:1 minimum for text 18pt+ (or 14pt+ bold)
  • AAA Normal: 7:1 minimum for enhanced accessibility
  • AAA Large: 4.5:1 minimum for large text enhanced accessibility