Describe the theory behind color schemes.
The color spectrum contains a virtually limitless number of individual colors. The human eye is capable of perceiving millions of individual shades and hues but until color theory was developed, no useful means existed to generate them in any systematic way. Primary color schemes were developed on the theory that any color from visible light spectrum can be produced by combining or subtracting just a few colors. These schemes evolved from one of the first, develop by Sir Isaac Newton, which is, known as Roy G Biv. The Roy G Biv colors include red, orange, yellow, green, blue, indigo and violet.