The Purple Dot Illusion uses the color #FF0066. But this is not the only color which creates a hue/ brightness shift. Here you can find out for yourself which colors are leading to the best effect.
What to Do
- You’ll see 12 colored dots rotating slowly on a neutral gray background.
(The gentle rotation and slight jitter make subtle color shifts easier to notice, the motion draws attention to differences that might otherwise fade from view. It also reduces adaptation and prevents afterimages that could mask the effect or lead to false positive perceptions.) - For each color set, decide whether you see a shift or no shift in perception.
- Use the buttons or keyboard shortcuts:
- ← or “Mark non” → no visible shift
- → or “Mark shift” → noticeable change
- Spacebar or “Skip” → move to the next
- “Redo previous” → correct your last choice
Tip
This might not work when eye comfort mode (blue light filter) is activated. Try viewing it on both desktop and mobile, design adapts automatically. You can also rerun the test multiple times; the order of colors is randomized each session.
Secondary Illusion: If you make it to the end, you might notice a secondary illusion — a subtle sense of illusory motion. Depending on where you focus, the dots may appear to move in the opposite direction of their previous motion, or seem to expand and contract as if the entire pattern were breathing.
Live analysis
Shift selections
Future updates will include different gray shades for the background.
Disclaimer
This color perception test is intended solely for educational and recreational purposes.
No personal data or responses are stored, transmitted, or analyzed.
Results are shown only in your browser for your own exploration.
Some users may experience visual fatigue, dizziness, or mild discomfort while viewing rotating colors or flickering images.