Color Blindness Simulator
See how a color looks to people with different types of color vision deficiency. Roughly one in twelve men perceives color differently, so a palette that reads clearly to you may collapse into confusing similar tones for a large slice of your audience. This simulator applies well-known transformation matrices for the three main types, protanopia and deuteranopia (red and green weakness) and tritanopia (blue and yellow weakness), and shows your chosen color beside each simulated version. Comparing them side by side quickly reveals when two colors that look distinct to you would become nearly identical, so you can pick safer combinations. It runs entirely in your browser and nothing is uploaded.
How to use Color Blindness Simulator
- Enter a color.
- View how it appears under each simulation.
- Adjust your palette if colors become hard to tell apart.
Frequently asked questions
Which types of color blindness does it simulate?
It simulates protanopia, deuteranopia, and tritanopia.
What is the difference between these types?
Protanopia and deuteranopia affect red green perception, while tritanopia affects blue yellow perception.
Why test a color this way?
It helps you check whether a palette stays distinguishable for users with color vision deficiency.
What is Color Blindness Simulator?
See how a color looks to people with different types of color vision deficiency. Roughly one in twelve men perceives color differently, so a palette that reads clearly to you may collapse into confusing similar tones for a large slice of your audience.
Is Color Blindness Simulator free to use?
Yes. Color Blindness Simulator is completely free, with no sign-up and no usage limits.
Does Color Blindness Simulator work in a web browser?
Yes. Color Blindness Simulator runs in any modern web browser. There is nothing to download or install.
Is my data private with Color Blindness Simulator?
Yes. Color Blindness Simulator runs entirely on your device in your browser, so nothing you enter is uploaded to a server.
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Link this tool from a README, doc or site. The badge links back to this page.
[](https://yourhack.ai/color-blindness-simulator)