About Color Blind Test

We want everyone to be able to check their color vision for free, in a couple of minutes, on the device in their pocket, and to understand what the result means.

What makes our test different

• Generated plates. Every plate is created from cone-sensitivity models, not copied from a book, so it’s different each time.
• Type and severity. We separate protan, deutan and tritan types and estimate how strong a deficiency is.
• Made for phones. Large touch targets, a number pad, and plates that fit any screen.
• Private by design. Your answers never leave your browser.
• Open about methods. Our methodology explains exactly how plates are built and scored, including the limitations.

Editorial standards

Our health content is based on peer-reviewed research and established clinical references, cited on the relevant pages. We update articles when the evidence changes and show the date of the last update. If you spot an error, pleasetell us.

Independence

The site is free and funded by optional affiliate links (for example to color-enhancing glasses). Commercial relationships never influence how the test scores your answers.