It is not just something that is there and that we get in our portrait because we happen to have color film in our camera. Color is descriptive and emotional factor of great strength. Its emotional power can be illustrated by the way we use color words to describe moods or characteristics: to feel blue, to see red, to be yellow, etc. There is tremendous difference in characterization between a color portrait made in the cold light of a cloudy day and one made in the reddish glow of the setting sun.