Color Tools

Color Accessibility Tool

Test color combinations for accessibility compliance and color blindness compatibility. Ensure your designs are inclusive and meet WCAG guidelines.

Foreground Color

Background Color

Contrast Analysis

0:1
Contrast Ratio
❌ AA
Normal Text AA
❌ AAA
Normal Text AAA
❌ AA
Large Text AA

Sample Heading Text

This is how normal text would appear with your selected color combination. Make sure it's easily readable.

Small text example for testing readability.

Color Blindness Simulation

Protanopia (Red-blind)
~1% of males
Sample Text
Deuteranopia (Green-blind)
~1% of males
Sample Text
Tritanopia (Blue-blind)
~0.003% of people
Sample Text

Color-Blind Safe Palette

These color combinations are distinguishable by people with various types of color blindness:

Accessibility Suggestions

💡 Tips for Better Accessibility:
  • Use high contrast ratios (at least 4.5:1 for normal text, 3:1 for large text)
  • Don't rely solely on color to convey information
  • Test your colors with color blindness simulators
  • Consider using patterns, shapes, or text labels alongside colors

Professional Color Accessibility Analyzer

Ensure your designs are inclusive and accessible to all users with our comprehensive WCAG 2.1 compliance testing, color blindness simulation, and contrast ratio analysis tools.

Color accessibility testing
Inclusive design principles

Why Choose Our Accessibility Analyzer?

Our comprehensive tool ensures your designs meet WCAG 2.1 standards and work for users with various visual impairments, creating truly inclusive digital experiences.

  • WCAG 2.1 compliance
  • Color blindness simulation
  • Contrast ratio analysis
  • Real-time validation
  • Inclusive design guidance
  • Professional reporting

WCAG 2.1 Compliance Testing

Test color combinations against WCAG 2.1 AA and AAA standards with precise contrast ratio calculations and detailed compliance reporting for professional accessibility validation.

Color Blindness Simulation

Simulate how your designs appear to users with deuteranopia, protanopia, tritanopia, and other color vision deficiencies to ensure universal accessibility.

Safe Palette Generation

Generate color-blind safe palettes and receive suggestions for improving accessibility while maintaining your brand identity and design aesthetics.

Perfect for:

  • Web development
  • UI/UX design
  • Mobile app design
  • Government projects
  • Educational platforms
  • Corporate branding

How It Works:

1
Input Color Combinations

Enter your foreground and background colors using HEX, RGB, or HSL values, or use the color picker interface.

2
Analyze & Simulate

Get instant WCAG compliance results and view color blindness simulations to understand accessibility impact.

3
Optimize & Report

Receive improvement suggestions and generate professional accessibility reports for documentation.

Frequently Asked Questions

WCAG 2.1 AA requires a contrast ratio of at least 4.5:1 for normal text and 3:1 for large text. AAA standards are more stringent, requiring 7:1 for normal text and 4.5:1 for large text. AA is the legal standard for most accessibility requirements, while AAA provides enhanced accessibility.

Our tool simulates deuteranopia (green blindness), protanopia (red blindness), tritanopia (blue blindness), deuteranomaly (reduced green sensitivity), protanomaly (reduced red sensitivity), tritanomaly (reduced blue sensitivity), and achromatopsia (complete color blindness).

Our calculations follow the exact WCAG 2.1 formula using relative luminance values, providing pixel-perfect accuracy. The tool accounts for gamma correction and uses the same algorithms used by official WCAG validation tools and browser accessibility audits.

Yes! Upload color palettes or brand guidelines to test all color combinations simultaneously. The tool generates a comprehensive accessibility matrix showing which combinations meet WCAG standards and provides alternative suggestions for failing combinations.

The tool provides specific suggestions: darken light colors or lighten dark colors to improve contrast, use patterns or textures alongside color coding, add borders or outlines to improve definition, or select from our database of accessible color alternatives that maintain brand consistency.

Absolutely! Generate professional accessibility reports in PDF format that document WCAG compliance levels, test results, color combinations analyzed, and improvement recommendations. Perfect for legal compliance, client deliverables, and accessibility audits.