Color is all around us. It is a sensation that adds excitement and emotion to our lives. Everything from the cloths we wear, to the pictures we paint revolves around color. In order to understand color we need a brief overview of light. Without light, there would be no color, and hence no RGB World.
Light is made up of energy waves which are grouped together in what is called a spectrum.
Light that appears white to us, such as light from the sun, is actually composed of many colors. The wavelengths of light are not colored, but produce the sensation of color. The wavelengths our eyes can detect is only a small portion of the electromagnetic energy spectrum. We call this the visible light spectrum. At one end of the visible spectrum are the short wavelengths of light we perceive as blue.