Colour Contrast Analyser
A free color contrast checker tool to optimize content for accessibility, supporting WCAG compliance for websites, apps, and designs.
Score
88
User Rating
4.5
Free/Trial Support
Supported
Starting Price
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Last Updated
Aug 04, 2026
Overview
What is Colour Contrast Analyser?
The Colour Contrast Analyser (CCA) is a free tool by Vispero for checking color contrast ratios to ensure accessibility for individuals with color-blindness or low vision, conforming to WCAG standards.
What is Colour Contrast Analyser used for?
Top Features
- Foreground and Background Color Picker
- WCAG Conformity (A, AA, AAA)
- Adjustable Color Sliders
- Multiple Color Formats (HEX, RGB, HSV, HSL)
- Alpha Transparency Support
- Color Blindness Simulator
- Copy Test Results
- Personalized Preferences and Shortcuts
- Theme Display (Light/Dark)
How to use Colour Contrast Analyser?
Download and install CCA on Windows or Mac, use the color picker to select foreground and background colors, adjust with sliders, and check results against WCAG levels for compliance.
Alternative Tools
No alternative tools found
Pros & Cons
Pros
- Free to use
- Supports multiple WCAG versions
- Easy-to-use interface with sliders
- Includes color blindness simulation
- Cross-platform (Windows and Mac)
Cons
- Limited to desktop platforms (no web version)
- May require manual updates
- No built-in collaboration features
Use Cases
- Website accessibility testing
- App development color compliance
- Designing social media graphics
- Checking PowerPoint slides and PDFs
- Educational and government compliance projects
Colour Contrast Analyser Pricing
Free Plan
No detailed pricing information available
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