Color Accessibility: Color Contrast  - Guidelines for Choosing Colors

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Choose colors that work for everyone

  • Provide sufficient color contrast
  • Do not rely on color as the sole means to convey information.   Add another visual element to indicate meaning, such as an underline or an icon.


  • Increase your audience
  • Low vision, color blind, and aging persons can access your content

Tools to Measure Contrast

Explanation of Effective Color Contrast

Color Blindness

Tools to Simulate Color Blindness

Explanation of Color Blindness