When you're sad, why do you really feel blue? Why not brown, for instance?
That's the color of choice in a study used to illustrate moods.
According to the journal Perceptual Motor Skills, 180 6-year old boys were asked to pick crayons to illustrate their moods. They were given a choice of red, yellow, green, blue, brown and purple, and asked to pick a color to correspond with happy, angry and sad.
There was no standard choice for happy, and angry was usually red. But most of the boys picked brown -- not blue -- to illustrate sad.