6.1 Examine the relation of the wavelength of light to perceived color.

6.2 Identify the perceptual principles of hue, saturation, and brightness.

6.3 Summarize the idea of a metamer and what color-matching experiments show.

6.4 Explain how the three cones interact to influence color perception.

6.5 Describe the trichromatic theory of color vision.

6.6 Illustrate the opponent theory of color vision.

6.7 Describe the concept of color deficiency and why it is a better term than color blindness.

6.8 Define the term constancy and how it applies to color vision.

6.9 Explain how purple is distinguished from violet.