Color Blindness Simulator

The tool simulates 8 different types of color vision deficiency: Protanopia (red-blind), Deuteranopia (green-blind), Tritanopia (blue-blind), Protanomaly (red-weak), Deuteranomaly (green-weak), Tritanomaly (blue-weak), Achromatopsia (complete color blindness), and Achromatomaly (blue cone monochromacy).

The simulations use scientifically accurate transformation matrices based on research in color vision deficiency. These matrices simulate how people with different types of color blindness perceive colors, providing a realistic approximation of their visual experience.

The tool supports all common image formats including JPEG, PNG, WebP, GIF, and BMP. The maximum file size limit is 10MB to ensure fast processing and optimal performance.

Yes! You can select multiple color vision types to simulate simultaneously. This allows you to see how your image appears to people with different types of color blindness in a single test, making it easier to identify potential accessibility issues.

Upload your design images, logos, UI screenshots, or graphics and simulate different color vision types. Look for elements that become difficult to distinguish or disappear entirely. Ensure important information remains visible and distinguishable across all simulations.

Yes, you can download each simulated image individually by clicking the "Download" button next to each simulation result. This allows you to save the simulations for sharing with your team or including in accessibility documentation.

This tool is an excellent starting point for WCAG accessibility testing. While it helps identify potential color accessibility issues, you should also test color contrast ratios and ensure your designs meet WCAG guidelines for color accessibility.

Pay attention to text readability, button visibility, important icons or symbols, data visualization elements, and any color-coded information. Ensure these elements remain distinct and usable across all color vision types.

Color vision deficiency affects approximately 8% of men and 0.5% of women worldwide. Testing for color accessibility ensures your designs are inclusive and usable by everyone, not just those with typical color vision.

Yes! This tool works for any type of visual design including websites, mobile apps, print materials, logos, infographics, and more. Any image-based design can be tested for color accessibility using this simulator.

No, all image processing happens entirely in your browser. Your images are never uploaded to our servers or stored anywhere. The tool processes everything locally for complete privacy and security.

Color-blind friendly designs use patterns, textures, labels, or shapes in addition to color to convey information. They avoid problematic color combinations and ensure sufficient contrast between important elements. Never rely on color alone to communicate critical information.