What is Color?
Color plays an essential role in our day-to-day lives. From birth we are taught
to react to colors logically or emotionally. Colors have meaning, which vary from
culture to culture and continent to continent. It governs and controls traffic,
triggers strong emotions, and is used to describe moods.
Light, perceived by the human eye, is the product of electromagnetic waves in a
small range of wavelengths. Different wavelengths are perceived as different colors.
Color is therefore a perceptual phenomenon, which depends on the observer and the
conditions in which the color is observed (our eye-brain is very accommodating in
adjusting for varying environmental conditions).
Three things are required for the presence of color: