07 · Seeing
Von Restorff Effect
Show people a row of similar things, and they'll remember the one that's different.
Evidence: Holds upWhat we do with it
- 01
Decide what the one thing on each screen is before you style anything. If the team can't agree, the design can't either.
- 02
Difference is relative. A red button on a red page disappears; the same button on a calm page is the first thing people see.
- 03
Check the screen in grayscale. If the important thing stops standing out, it was leaning on color alone.
- 04
Motion is the loudest difference there is. Save it for the moment that needs it, and switch it off for people whose devices ask for less motion.
Examples
Getting it wrong, getting it right.
Don't
A page where the buy button, a sale banner, a chat bubble and a cookie notice all compete in bright color. Nothing wins.
Do
One filled button for the main action, plain links for everything else.
The evidence
What the research says.
One of the sturdiest results in memory research. The catch, from R. Reed Hunt's 1995 review: what makes an item memorable is being different from what surrounds it, and a loud item among loud items gets no boost. Hunt and Christopher Lamb's 2001 experiments backed that up: the effect comes from noticing both what the items share and how one of them differs.
Sources
- von Restorff, H. (1933). Über die Wirkung von Bereichsbildungen im Spurenfeld. Psychologische Forschung, 18.
- Hunt, R. R. (1995). The subtlety of distinctiveness: What von Restorff really did. Psychonomic Bulletin & Review, 2(1).
- Hunt, R. R., & Lamb, C. A. (2001). What causes the isolation effect? Journal of Experimental Psychology: Learning, Memory, and Cognition, 27(6).
Last reviewed November 7, 2026. How we keep this current