SIGNIFICANCE OF COLORS - I: Colors frequently designate characteristics of temper: i.e. "brown study," "black melancholy," "blue devils," "green-eyed monster," "yellow-livered," "blue stockings," "white feather," * etc. Pink is a happy color, and makes a kitchen a place of contentment for cooks. A blue and yellow room would soothe even a mortgage holder.
*Brown study - a melancholy mood: blue devils - demons causing depression: blue stockings - intellectual, educated women; white feather - symbol of cowardice.