Color Blindness Simulator
See how your UI and color palette look to people with color vision deficiencies. Affects approximately 8% of men and 0.5% of women.
Normal Vision
UC
PureBrowserGenerate
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✓ Success message
✕ Error message
Deuteranopia
UC
PureBrowserGenerate
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✓ Success message
✕ Error message
Your Color Palette
Click swatches to change colors
Normal
Deuteranopia
Tip: Ensure sufficient contrast between colors and don't rely on color alone to convey meaning. Use labels, icons, or patterns alongside color.
- 100% free — no account needed
- Runs in your browser
- Nothing is uploaded
Frequently asked questions
Is Color Blindness Simulator really free?
Yes. Color Blindness Simulator is completely free on PureBrowser — every feature, with no account, no trial, and no credit card.
Does Color Blindness Simulator upload my data?
No. Color Blindness Simulator runs entirely inside your browser, so anything you type, paste, or open stays on your own device.
Do I need to sign up or install anything?
Neither. There is no account and nothing to download — open the page and Color Blindness Simulator is ready to use on desktop or mobile.
Does Color Blindness Simulator work offline?
Once the page has loaded, yes. All of the processing happens locally in your browser, so it keeps working without a connection.