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Colour Focus — a free online Stroop test game

Colour Focus is MindFit's version of the Stroop test. A colour word appears — "Red", "Blue" — printed in a different colour of ink. Tap the colour of the ink, not the word you read.

Reading is automatic, so the word gets in the way. That slowdown is called the Stroop effect, named after the psychologist J. Ridley Stroop, who described it in 1935. Beating it takes deliberate attention.

Free · in your browserNo sign-upBest score saved on this device

How to play

  1. You have 30 seconds.
  2. A colour word appears in a different ink colour — the word and the ink never match.
  3. Tap the button for the ink colour. There are five colours: red, blue, green, yellow and purple.
  4. A new word appears straight after every tap, right or wrong.

How the score works

Each correct tap is +1, each wrong tap is −1 (the score never drops below 0). Your score is the total when the 30 seconds run out.

What it trains

Selective attention — ignoring the automatic answer and giving the right one quickly.

Tips to score higher

Techniques that help: Attention first

Ready?

Open Colour Focus in MindFit — it starts when you tap Start. Your best score and daily streak stay in this browser.

Challenge a friend to Colour Focus

MindFit is brain training for habit and fun. It is not a medical or cognitive test and does not diagnose or measure any condition.

Colour Focus questions

What is the Stroop test?
It is a classic psychology task in which you name the ink colour of a colour word that spells a different colour. People are slower and make more mistakes when word and ink disagree — the Stroop effect. Colour Focus is a casual game version for practice, not a clinical or diagnostic test.
How long is a round?
30 seconds. Every correct tap adds a point and every wrong tap takes one away.

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