Colour Contrast Checker

What is a Colour contrast checker?

A Colour contrast checker is a tool that helps you evaluate how readable text is against a background Colour. It calculates the contrast ratio between two Colours to determine whether your design is accessible to people with visual impairments, including Colour blindness.

How to use the Colour contrast checker?

Follow these easy steps:

1. Input Colours: Enter the HEX codes of your text and background Colours.
2. Live Preview: Instantly see how the combination looks in a simulated UI preview.
3. Contrast Score: Get a numeric contrast ratio (from 1.00 to 21.00).
4. Accessibility Rating: View automatic ratings based on WCAG levels (AA and AAA).
5. Improve Your Design: Tweak your Colours until you achieve a strong contrast score.
6. Ready for Use: Copy the HEX codes or use the combo directly in your designs.

Why Colour Contrast Matters in Design

1. Enhances Readability for All Users

High contrast between text and background ensures that your content is readable across all devices and lighting conditions, especially for users with low vision or Colour blindness.

2. Meets Accessibility Standards (WCAG)

WCAG requires websites to meet specific contrast ratios:

• 4.5:1 for small text (AA level)
• 3.0:1 for large text
• 7.0:1 for AAA level accessibility

Failing these benchmarks can make your site legally non-compliant in some countries.

3. Improves User Experience

Readable text keeps users engaged longer. It reduces bounce rates, improves retention, and creates a more enjoyable browsing experience.

4. Improves SEO Performance

Search engines like Google consider accessibility in their ranking algorithms. A well-optimized, accessible site is more likely to perform better in search results.