How Colors Smell
"When someone asks me what flavor slushie I want, I don’t say “cherry,” I say “red.” That flavor is called “red.” “Blue” is another flavor a slushie might have. Similarly, a cherry smell—especially the chemically cherry smell of a red slushie—is a red smell.
That one’s easy, since cherries are red. It doesn’t take a wild leap to make that association. But what color is the smell of, say, soap?
A new study published in PLOS One finds that some people say white, some say yellow, some say blue. A group of international researchers had people from different cultures smell 14 scents and choose from 36 colors the one that they associated most with the odor."
Link to the study abstract: http://goo.gl/2FIw22