How do we color?

Answer 1

We see colors by the different wavelength that is not absorbed (or what's being reflected) by the object that we see. These objects do NOT own colors. It's the surfaces of the objects that allows things to reflect or be absorbed. Ex. When I see a red book, the other colors such as orange, yellow, green, blue etc. are being absorbed by that red book from a light source except for the color red. The reflected color(s) (in the example, the color red) is then captured or perceived by our eyes.

Another perspective of "how we see colour?" is that there needs to be some form of light in order for us to see colour and without that light, we wouldn't be able to see colour, let alone see at all. A bonus: If you see white, the object reflects all the wavelength or all the colours. If you see black, the object absorbs all the wavelengths or absorbs all the colours.