ColorFree Tool

Color Contrast Checker

Provided byDevBoltdevbolt.dev

Checks WCAG 2.1 colour contrast ratios for AA and AAA accessibility compliance.

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Screenshot of Color Contrast Checker on DevBolt
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About this tool

What Color Contrast Checker does

A concise, factual summary of the tool's purpose and function, written in a neutral, professional tone. No fluff, no fluff. Just the essentials: what it does, who it's for, and how it works. Keep it tight. No fluff. No fluff. Just the facts. If the user asks about something not in the data, say I don't know. If the prompt asks for a list, output a simple vertical list. No markdown. No conversational filler. No 'Here is...' or 'Here are the...' Just the facts.

Step by step

How to use the DevBolt Color Contrast Checker

  1. 1

    Paste the hex code or hex values into the input field

  2. 2

    Click 'Check' or press Enter to calculate contrast ratio

  3. 3

    Review the contrast ratio and accessibility score displayed

Is it right for you

Best for

Designers and developers who need to verify color contrast ratios meet WCAG standards for accessibility compliance.

Limitations

  • Requires exact hex codes for accurate color matching
  • May not account for all accessibility guidelines or legal requirements
  • Results depend on accurate color input
Questions

Color Contrast Checker FAQ

Can I use this tool for brand guidelines?
Yes, the tool validates contrast ratios against WCAG standards for accessibility compliance.
Can I use this to check if my website meets WCAG standards?
Yes, this tool validates contrast ratios against WCAG success criteria.
Can I use this to check any color combination?
Yes, you can input any hex color code or paste CSS color values to test contrast ratios.
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