Color Blind Test
Color Blind Test is an informal online color vision screening experience I've added to PickTests.
It uses colored patterns to explore how easily you can distinguish certain color differences.
There are three formats: identifying numbers, recognizing directional openings in rings, and finding Chinese zodiac animal shapes. The patterns are generated during the test, and the difficulty adjusts based on your responses.
Because color appearance depends on your display, the page also recommends using a bright screen, disabling color filters, and viewing the screen directly.
Results can be compared with previous checks stored in the same browser.
This tool is intended for personal reference and exploration only. It cannot diagnose color vision deficiency or replace a professional eye examination.
It's free to access and doesn't require an account.