Just to propose a different point of view, color vision in humans is caused by the response of cone cells, of which we have three types: L, M and S. Now interestingly, according to Wikipedia:

The first responds the most to light of the longer red wavelengths, peaking at about 560 nm. The second most common type responds the most to light of yellow to green medium-wavelength, peaking at 530 nm.

Meaning that our “red” cones respond better to yellow light than our “green” cones.