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One tile is a slightly different shade — find it before it gets harder.
Find the tile whose colour differs from the rest and click it.
Each correct answer makes the next difference smaller and earns you points.
A mistake costs a life.
See how many levels you can clear before the shades become impossible to tell apart.
Color Discrimination is a free vision and attention test. A grid of coloured tiles appears and exactly one tile is a slightly different shade. The difference starts obvious and shrinks with every level, so spotting it becomes a real challenge for your eyes and your focus. It is aimed at players aged 6+ and up, and a typical round takes around 3 minutes. If you already enjoy brain-training, attention and colour games, you will feel at home here within seconds.
The goal is straightforward. The on-screen instructions walk you through it, and you can start playing with a single click. Controls are intuitive: use your mouse or keyboard on a computer, or tap and swipe on a phone or tablet. Because everything runs locally in your browser, Color Discrimination reacts instantly and never needs a page reload.
Playing short, regular sessions supports memory, focus and mental agility.
Hard to say? It is rated Medium, aimed at ages 6++ and above, and takes about 3 minutes per session — a good fit for a coffee break, a commute, or a relaxed evening. It works equally well on desktop, laptop, tablet and phone, with no account and nothing to install. Keep an eye on your best score: it is saved on your device so you can measure your progress over time.
Yes. Your best score is stored locally on your device, and finished runs can be submitted to the live leaderboard.
No — like most browser games it needs an internet connection the first time. Once the page is loaded it stays smooth even on slower connections.
Yes. Color Discrimination is completely free, with no paywalls, no subscriptions and no hidden costs.
No. Color Discrimination runs entirely in your web browser. There is nothing to install and no account to create.
Yes. The game is responsive and touch-friendly, so it works on phones, tablets, laptops and desktop computers.
It is recommended for ages 6+ and is family-friendly, with no chat and no in-game purchases.
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