6. A color model is an abstract mathematical model describing the way colors can be represented as tuples of numbers, typically as three or four values or color components.
7. The main purpose of the RGB color model is for the sensing, representation and display of images in electronic systems, such as televisions and computers, though it has also been used in conventional photography.
8. red, green and blue light are added together in various ways to reproduce a broad array of colors
9. Saturation
10. Make a color system of classifying colors by their value