Another common way to classify the colors on the wheel is by temperature. Look at the paintings by Vincent van Gogh on pages 70 and 71. One is warm, the other is cool. For this course, you are not expected to memorize the color wheel or terms that are not listed at the end of the lesson. If you would like to know more, go to this site on exploring color .
Colors come with potent emotional, psychological, and symbolic associations.
Some of these are universal, others are particular to a culture or community. School colors, for instance, are community based. The traditions of mourning in black and marrying in white are culturally based, not universal. Red as a symbol of blood and danger is universal. Think of the Red Cross.