Color Blindness Simulator
Simulate how your design or image appears to people with various types of color vision deficiencies. Test accessibility instantly.
Drop an image to test visual accessibility
Drag & drop up to 10 files, or click to select
How to Use the Simulator?
Upload Your Image
Drag and drop your design, chart, or photo into the upload area.
Select Vision Filter
Choose between Protanopia, Deuteranopia, Tritanopia, or Achromatopsia to apply the filter.
Analyze Accessibility
Review the real-time preview to ensure colors and contrasts remain distinguishable.
Download & Share
Download the simulated image to share with your team for accessibility audits.
Features & Benefits
- Accurate Color Matrices:Utilizes industry-standard mathematical algorithms to accurately simulate various color deficiencies.
- 100% Client-Side Processing:Your designs and photos are processed locally in your browser. Perfect for testing confidential UI/UX wireframes.
- Instant Real-Time Previews:Switch between different visual filters with zero lag and no server upload times.
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Frequently Asked Questions
Why is testing for color blindness important?
Roughly 8% of men and 0.5% of women experience some form of color vision deficiency. Simulating it ensures your graphs, UI buttons, and text contrasts remain accessible to everyone.
What is the difference between Protanopia and Deuteranopia?
Protanopia is reduced sensitivity to red light, while Deuteranopia is reduced sensitivity to green light. Both are forms of red-green color blindness, making it hard to distinguish between reds, greens, browns, and oranges.
Are my images saved to your server?
Absolutely not. The pixel manipulation happens completely client-side utilizing your browser's HTML5 Canvas, ensuring complete data privacy.
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