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Color Contrast Checker

Check WCAG color contrast ratios

About Color Contrast Checker

Check color contrast ratios against WCAG 2.1 guidelines. Verify that your text and background color combinations meet accessibility standards for AA and AAA compliance.

Frequently Asked Questions

Why does color contrast matter for SEO?

Web accessibility is increasingly important for SEO. Google considers user experience signals, and poor color contrast makes content unreadable for many users, increasing bounce rates. WCAG compliance also protects against accessibility lawsuits.

What WCAG contrast ratio should I target?

WCAG AA requires 4.5:1 for normal text and 3:1 for large text (18pt+). WCAG AAA requires 7:1 for normal text and 4.5:1 for large text. Aim for AA minimum, AAA for maximum accessibility.

How do I check color contrast on my website?

Use browser developer tools (Chrome DevTools highlights contrast issues), automated accessibility scanners, or tools like this one. Check all text-background combinations including hover states, form inputs, placeholder text, and disabled elements.

How to Use Color Contrast Checker

  1. 1

    Open the Color Contrast Checker tool

  2. 2

    Enter your input data in the designated field

  3. 3

    Configure any optional settings

  4. 4

    Click the action button to process

  5. 5

    Review or copy the output

  6. 6

    Use the result in your project

Why Use Color Contrast Checker?

Color Contrast Checker is a precision tool that saves you time on a common web development task. Small utilities eliminate the friction of repetitive tasks, letting you focus on strategy and content creation instead of manual technical work.

Key Features

  • Fast and reliable processing
  • Clean, intuitive interface
  • One-click copy to clipboard
  • No signup required
  • Works in all modern browsers
  • Mobile-friendly design