After devoting an entire section to color, we'd be remiss not to discuss the basics. So what exactly are the relationships and effects that one color has on another? By referring to the adjacent color wheel, you'll see that within this wide spectrum, there are three dominant and pure colors, called "primary colors": yellow, blue, and red. Because mixing two of these produces secondary colors (red + yellow = orange, for example), it's no coincidence that the primaries are located at equal intervals on the color wheel. All other hues, known as tertiary colors, result in varying combinations of the primaries and secondaries. Remember these points when using a color wheel for updating your home.