Color surrounds us. In nature, at school and at home, even at the stores in the mall, color not only provides essential visual cues to our physical world, but also influences our feelings and maybe our thoughts.
Color begins with light.
Measured in hertz. Measured in nanometers. Imagine light as a constant flow of tiny waves of varying length. A beam of light has frequency, wavelength, and energy. The colors we see are found in a very narrow range of wavelengths along the visible spectrum of light.