Anything we see around us that have colours are not actually colours but photons travels with different frequencies and our eyes detect that frequencies in form of colours.
How photons travels with different frequencies-
Electrons are revolve around the nucleus in different shells in an atom.
Every particular electron revolve in an particular shell. When photon collide with electrons, the electron absorb the energy of photon.
By absorbing the photon energy, the electron goes to the next energy shell for a short time of period (10^-8 sec)
The electron goes to the next energy shell called excited state.
After 10^-8 sec in excited state, the electron come back to it’s original energy shell called ground state.
When electron come back to ground state, it release the energy of photon which is absorbed by it. It release photon in a particular frequency range. And the whole process is continuous.
The released photon strike on our eyes. The light receptors in eyes can transmit the message to brain and brain can detect the this in form of colour and make an image of that object so that we can see an object which has colour.
There are more than 10 million colour detected.
Black and white are not colour because black is form when all the light Ray’s or all the photons can be absorbed and white is formed when all the light Ray’s are reflected from the surface.
Anything which is transparent can pass all the light Ray’s through it and would be invisible if 100% light rays can pass through it which strike on it.
The range of visible light is 380 – 700nanometer(nm).
And all the colours we can see have in the range of visible light.
Thank you
PENSER study point 
Explains alot. I’ve always wondered why the sky appears blue, yet I know it’s not.
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Ya it’s not and thank you for visiting
And stay tuned for more updates
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Welcome. I will
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Lovely painting and great information about how we enjoy its bright colors! 🙂 All the best! Cheryl
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The best part is that they can look at a prismed light from a celestial object and determine what it is made out of…
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Yeah that’s the beauty of nature
And We are able to see the colors due to the light and that is the topic of our upcoming post,
see it once and give us your suggestions.
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It’s really nice. The reality is so different than what our sense organs can perceive. Great article
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How does distance impact the colors we see?
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It’s depend on intensity of light.
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I have always found this phenomenon exciting.
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What intrigues me is that there are possibly animals that see a wider spectrum of colours than we do and also, how do se know we are all seeing the same colours? I have been shopping with friends who have varied widely on a standard colour such as Red,- as an artist I like to think I know my colours!
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