Why use a color blindness simulator?

Color blindness affects ~8% of males and ~0.5% of females globally. Designers and developers use simulators to ensure websites and apps are accessible to color-blind users.

Can I download the simulated result?

Yes. Download the simulated image as a PNG file for use in design reviews or reports.

Free Online Color Blindness Simulator

🖼️

Click to upload or drag and drop an image here

Supports JPG, PNG, WebP, GIF

📷 Original

Please upload an image

🔬 Protanopia Simulation

❓ Frequently Asked Questions

Is this simulator safe? Are images uploaded?

Completely safe. All processing happens in your browser — images are never uploaded to any server.

Which types are supported?

Protanopia (red-blind), Deuteranopia (green-blind), Tritanopia (blue-blind), and Achromatopsia (total color blindness).

What algorithm is used?

The Brettel-Viénot-Mollon color vision model using LMS color space matrix transformations.

Why use this simulator?

Color blindness affects ~8% of males and ~0.5% of females. Designers use it to ensure accessibility for all users.

Can I download the result?

Yes. Download the simulated image as a PNG file for design reviews or reports.