Auf Formulate ist mal wieder ein interessanter Blog-Beitrag erschienen: Perception and the design of forms – Part 3: Colour.
We are hardwired to be able to notice colour changes in our environment, and not just consciously, but without thinking. Things like this that are perceived without our conscious attention are said to be processed pre-attentively. [...] All three of our characteristics—shape, size and colour—are pre-attentively processed. Anecdotal evidence suggests, however, that colour typically has a greater impact on the overall design of a form than size and shape, both from a usability and an aesthetic point-of-view.