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Leonardo vs WebAIM Contrast Checker

Leonardo: Open source colour tool for accessible contrast-based scales WebAIM Contrast Checker: Checks text and background color pairs against WCAG contrast ratios

Comparison of Leonardo, WebAIM Contrast Checker
Leonardo
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WebAIM Contrast Checker
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CategoryColor and GradientsAccessibility
PricingOpen sourceApache-2.0 licenceFree
Platforms
  • Web
  • Web
Best for
  • Design system teams
  • Accessibility designers
  • Front-end engineers
  • Designers
  • Front end developers
  • Accessibility teams
Highlights
  • Build colour scales from target contrast ratios
  • Create adaptive themes for brightness and contrast
  • Export themes as SVG, CSS or design tokens
  • Check the contrast ratio of two colors
  • See pass or fail for WCAG AA and AAA
  • Preview normal and large text samples
GitHub stars2.2k–
Last update4 months ago–

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