Arena
Get matched against the next player in the queue. The mode is picked at random from Easy, Hard, Speed, Blind Sliders, and Gradient — so come ready for anything.
- ·Pick a nickname (same one used on the leaderboard).
- ·Click Challenge — you'll wait in the queue until someone else is also searching.
- ·When two players are in the queue, you're dropped into a private room and the game starts.
- ·Five rounds. Highest total wins. Your result counts on the public leaderboard.
Arena is new and traffic is still light. If no one joins within a minute, we’ll let you know and you can try again later — or create a room and invite a friend directly from the home page.
If the other player disconnects mid-match, you’ll see a banner and win by default. You can still play out the remaining rounds to post your score.
Most players have a favourite variant and quietly avoid the rest. Arena takes that crutch away. Because the mode is drawn after you queue, you can’t warm up for the exact test you’ll face — a Gradient specialist might land in Blind Sliders, where there’s no live preview to lean on. Over a handful of matches the rotation evens out, so a good Arena record means your colour memory is genuinely broad rather than one well-practised trick.
Both players face identical targets each round, and every guess is scored with CIEDE2000 — the perceptual colour-difference formula used across the site — so the duel measures whose eye was closer, not whose connection was faster. Five rounds, highest combined total takes the match. Your totals post to the same public leaderboard as solo runs, and wins feed your head-to-head record. New to the scoring? The how-to-play guide explains it in plain English.