Color Clash

Color Clash is built on the Stroop test — a classic measure of inhibitory control, your ability to override an automatic habit. Reading is so automatic that when a color word is printed in a different ink, part of your brain insists on reading the word. Naming the ink instead means actively suppressing that reflex. It was introduced by John Ridley Stroop in 1935 and is still used in research on attention and executive function.

Cognitive domain: Executive Control

A color word appears in a mismatched ink — the word “RED” printed in blue. Tap the button that matches the INK color, not the word you read. Answer as many as you can in 45 seconds; a wrong tap scores nothing and costs you time.

Your score is how many you answer correctly in 45 seconds. On the MindSprint scale, around 35 correct is top-tier — roughly one right answer every 1.3 seconds while resisting the urge to read. Accuracy matters, because every wrong tap eats the clock.

• Look at the ink, not the letters — let the word blur.
• Say the ink color in your head to drown out the written word.
• Slow down slightly on mismatches; that is exactly where the reflex trips you.
• Find a steady rhythm rather than racing and misfiring.

What does the Stroop effect show?

That well-practiced habits (like reading) are hard to suppress — naming a conflicting ink color takes measurable extra effort.

Is the Stroop test used seriously?

Yes — it is widely used in psychology and neuroscience research on attention and executive function.

Why is it harder than it looks?

Reading is automatic and fast; overriding it on every trial is the actual challenge.