WCAG (Web Content Accessibility Guidelines) are international standards for accessibility. Color contrast ensures text is readable for users with visual impairments and in challenging viewing conditions.

What is the difference between WCAG AA and AAA?

WCAG AA requires 4.5:1 contrast for normal text and 3:1 for large text. WCAG AAA requires 7:1 for normal text and 4.5:1 for large text.

How do I enter colors in this tool?

Enter hex color codes such as #FF0000. Both 3-digit and 6-digit hex values are accepted.

What contrast ratio should I aim for?

Aim for at least 4.5:1 for normal text (WCAG AA). For enhanced accessibility, target 7:1 (WCAG AAA).

Does this tool work with other color formats?

The tool accepts hex codes. Convert RGB or HSL values to hex using your design tool or a converter.

Can I use this for brand colors and logos?

Yes. Use it to verify logo readability, button text visibility, and brand color pairings.

Professional WCAG contrast checker

Ensure your designs meet WCAG accessibility standards. Test combinations instantly and confirm AA or AAA compliance for better readability.

Why accessibility matters

Improves readability for all users.
Supports users with visual impairments.
Enhances SEO and usability.
Helps meet legal accessibility requirements.

Best practices

Target 4.5:1 contrast for normal text.
Use 7:1 for critical content or AAA compliance.
Test interactive states like hover and focus.
Do not rely on color alone for meaning.