Color Blindness Simulator

Simulate how your images appear to people with different types of color blindness. Upload an image and see 8 vision types.

How to use the Color Blindness Simulator

1

Upload an image

Drag and drop or select an image file to simulate color blindness.

2

Select simulation type

Choose from Deuteranopia, Protanopia, Tritanopia, or Achromatopsia.

3

View the result

See how the image appears under the selected color blindness type.

4

Compare and download

Compare with original and download the simulated image if needed.

Pro tips

  • Useful for designers to ensure accessibility.
  • Test multiple types to cover all users.
  • All processing happens in your browser.

Key features

  • 100% Free
    No signup, no credit card, no hidden limits.
  • Privacy First
    All processing happens in your browser — your data never leaves your device.
  • Instant Results
    Process in seconds with no uploads, no waiting, no server delays.
  • Works Offline
    Once loaded, the tool works without an internet connection.

About the Color Blindness Simulator

The Color Blindness Simulator is part of LaiUse's growing collection of developer tools, programming, code formatter, json tools, regex. Like every tool on LaiUse, it runs entirely in your browser — meaning your data, files, and inputs stay on your device throughout the entire process.

LaiUse offers Developer tools alongside json formatter, json path query, cron expression parser. The entire platform is free to use with no signup required, making it a popular choice for developers, designers, and everyday users who need a quick tool without the overhead of a SaaS subscription.

Whether you need the color blindness simulator for a one-off task or as part of your regular workflow, LaiUse is designed to be fast, reliable, and private. Bookmark this page to come back anytime, or explore the rest of the Developer category for related tools.

Frequently asked questions

What color formats are supported? +

HEX, RGB, RGBA, HSL, HSLA, HSV, and CMYK. LaiUse converts instantly between all formats and shows a live preview of the color.

How do I pick colors from an image? +

Use the eyedropper tool (eyedropper icon) to sample any pixel on the page. The color is captured in HEX and converted to all other formats.

What is WCAG contrast? +

WCAG (Web Content Accessibility Guidelines) defines contrast ratios for text readability. The tool shows the contrast ratio between two colors for AA and AAA compliance.

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