Final answer:
Color vision depends on three types of cones in the eye that contain pigments sensitive to different wavelengths of light. These cones are called S cones, M cones, and L cones. The combination of stimulation of these three types of cones allows us to perceive a wide range of colors.
Step-by-step explanation:
Color vision depends on three types of cones in the eye that contain pigments sensitive to different wavelengths of light. These cones are called S cones, M cones, and L cones. S cones are most responsive to short light waves of 420 nm, M cones to waves of 530 nm, and L cones to longer wavelengths at 560 nm. The combination of stimulation of these three types of cones allows us to perceive a wide range of colors. Without these cones, color vision would not be possible.