Privacy Policy
Short version: the test runs in your browser, your answers and any images never leave your device, and we use no analytics, ads or tracking.
Who we are
Detect Color Blindness (detectcolorblindness.com) provides a free, educational colour-vision screening tool.
Test data stays on your device
The colour blind test and the simulator run entirely in your browser (client-side). Your plate answers are scored locally and are not sent to or stored on our servers. In the simulator, uploaded images and camera frames are processed on your device and are never uploaded.
No analytics or tracking
We do not use analytics, advertising trackers, or third-party tracking scripts. We do not build a profile of you or follow you across the web.
Cookies
We do not set tracking cookies. The site works without cookies at all; any browser storage is limited to what your browser needs to display the page.
Advertising & affiliate links
This site currently carries no ads and no affiliate links. If that ever changes, we'll update this policy and label such links clearly.
Your rights (GDPR)
We operate from the EU and aim to comply with the GDPR. Because the test collects no personal data and sets no tracking cookies, there is normally nothing personal for us to hold about your use of the tool. If we introduce any feature that processes personal data in future, we'll update this policy and provide a way to exercise your access, correction, erasure and consent-withdrawal rights.
Children
The kids' test is intended to be used by a child together with a parent or guardian. We do not knowingly collect personal data from children.
Changes
We may update this policy; the "last reviewed" date at the top reflects the latest version.
Ready to check your own colour vision?
Take the free color blind test