About

Remember the Color is a small daily game about one question: how well can you hold a color in your head?

What it is

You see a color for a few seconds, then rebuild it with hue, saturation and brightness sliders. There are five colors in a game, a new set each day, and an endless practice mode when one set is not enough. It runs in your web browser, is free to play and needs no account or download.

Where the colors come from

Nobody picks the colors by hand. A small program generates them from a seed. For the daily game that seed comes from the date, so a new set appears when your device's date changes. Practice games use a random seed. The generator leaves out near-grays and near-blacks because they make dull rounds, and it tries to keep the five colors in a game clearly different from one another.

How scoring works

Scores come from the measured difference between your color and the target, using the CIEDE2000 color difference formula, published by the International Commission on Illumination (CIE 142-2001). The implementation follows the 2005 paper on the formula by Sharma, Wu and Dalal. The how to play page shows how differences turn into points.

Your results

Your streak, best scores, recent games and any unfinished daily game are stored in your own browser, on your device. They are not tied to an account and do not follow you to another device. Finished daily games also go to an anonymous leaderboard, under a random ID and a generated name. The privacy page has more detail.

Remember the Color is a Cain Brands site.