There are certain widely accepted pairings of moods and colors: red for anger, green for envy, blue for tranquility, etc. But the human spectrum of emotions is probably as broad as the color spectrum, and capturing your whole cocktail of feelings at any given moment in one perfect shade is a little harder than choosing between red and blue. It did pretty well, nailing zaffre (an ancient blue pigment similar to cobalt), glaucous (a pale, grayish blue), and melichrous (a honey shade).