I don't have a favorite color. Rather, I favor the choice of color that a situation calls for.
One of the first movies I can remember watching, was Disney's Alice in Wonderland. It was a masterpiece of horror from a child's point of view: Loneliness, madness, cruelty...above all, the dread of being lost in a dark and haunted forest.
My strongest memory of the animated Alice is color. Dark and cold--where indigo, fuchsia and jungle green meet in a backdrop of perfectly chosen colors.