Goethe from Steiner,
“The colours therefore, to begin with, make their appearance purely and simply as phenomena at the border between light and dark…”
Colours arise at the borders, where light and dark flow together.”
Click here for a visual representation.
Goethe seems to have thought of light and dark in terms of a metaphysical dualism, from whose interaction color is born.
Newton held that white light passing through a prism is diffused into its various wavelengths. He also may have steered the discussion into wave-particle duality.
See Also: Wikipedia’s article, Physics Today article on his experiments, Goethe’s color triangle.

Well, our brains (or us) don’t really proves the existence of visible light waves. Our brains only cope with that particular wavelengths of electromagnetic waves because, as I’ve mentioned, it is vital for survival. How can we say that “red’ is visible when insects can’t perceive it? If we don’t need to perceive light rays to survive, then there will not be a “visible light” spectrum in the midst of the EM spectrum. Actually, visible light waves is just a representation of the environment that we happen to live in. For instance, insects’ “visible light waves” extends up to Ultraviolet waves- that’s because their niche deals with Ultraviolet light.

It is indeed true that our surroundings are nothing but atoms and energy- our brain makes it interesting- and more importantly, it is vital for survival.

Actually I did not say that something unproven is true because of the existence of the word. Who would make sure a hilarious statement? Haha.

I was just trying to say that there are different ways of interpreting various “information”.

There is no doubt that all the senses we ‘feel’ are in the mind. However, colour is a way our brains proves the existence of visible light waves.

Just like X-rays, it may not be visible to us, but the usage of a X-ray machine to produce X-ray images is to prove the existence of X-rays. But the X-ray images do exist.

Well of course, there won’t be a X-ray image unless we use or senses to perceive it because in actual fact, it is just a gigantic combination of atoms.

Yes, if we do not have a mind, our surroundings are nothing but atoms, molecules, forces and energy.

Does God exist simply because there’s a word “God” in my Oxford English Dictionary? Well, no.