This document discusses color schemes and how color is used to create depth in artwork. It explains that warm colors like red, orange and yellow are used to represent fire and sunlight, imply happy energy, and make objects appear closer. Cool colors like blue, green and purple are used to represent sky, water and plants, imply sadness and make objects appear farther away. It also describes how an artist can create a sense of space and atmosphere by making colors darker and more detailed closer to the viewer and lighter with less detail in the distance.