| People with trichromatic color vision see not only four primary colors but also various intermediate colors between them. |
| The human eye is trichromatic, as our color vision involves three distinct classes of cones. |
| Accordingly, the successful acquisition of fruits cannot be strongly tied to the evolution of routine trichromatic vision. |
| Theoretical modeling of fruit spectra into the trichromatic color space of catarrhine primates yielded similar results. |
| Similarly, we may have preferences for certain colors based on the primate trichromatic color visual system. |
| The theory was developed by Hermann Ludwig Ferdinand von Helmholtz, and is called the Young-Helmholtz trichromatic theory. |
