About

Color Perception Challenge is a free browser game that finds the edge of your color vision: spot the odd-colored tile on a grid that gets harder with every level. Difficulty is calibrated with the ΔE color-difference metric so every round is fair — no accounts, no downloads, just open and play.

The site runs entirely in your browser: no account, no identity tracking, free to play, supported by unobtrusive advertising. It is built and maintained by an independent studio that ships focused web games and tools.

Questions or feedback? Reach us on the contact page.