h2g2 The Hitchhiker's Guide to the Galaxy: Earth Edition

Interresting theory, sure. But it was concieved in a vacuum. You should take some things into account though [unless you're a creationist, in which case it doesn't matter]. But the question rings of a separate philosophy, which most creationist tend to avoid.

1. Wavelengths of colors are similar (i.e. one red has the same wavelength as another red)
2. We evolved to percieve color- very well even. 50% of our light sensitive cells interpret color, not light/dark.
3. Roughly 99% of our genetic material is exactly the same as every other human being on earth. That which dictates what the color sensitive cells in your eyes send to your brain is much the same as anyone else's. The eyes interpret color, the brain percieves and analyzes it.
4. You were raised by individuals. Whether they were a pack of wolves, a colorblind couple, a single person with extreme animosity towards the color green, or a person or people with other views, that or those individuals painted your perception of color. Their perception of color were based on what their parents taught them, etc, etc.

A million years of genetics is not going to be dissuaded by one or even several philosophical arguements. The colors we see are much the same. Your red is my red. The meaning of those colors, however, is very different.

Sorry to any red/green colorblind people reading this. My red is your grey.