How are there colors?

Answer 1

Colors are made from the light spectrum. The more light an object reflects is dependent on its color. Black is not a color, it absorbs all light and heat which is why it is black. White reflects all color which is why it is white, if you like you can say white is every color. other colors absorb or reflect different lights and so make up the millions of shades and hues in between white and black.

Answer:

Colors is first of all not what most people think they are.

I would like to start off by saying that colors does not exist where as light does exist.

Imagine that the entire room you sit in is entirely dark. All 'black'. As a consequence, everything you perceive as colors have vanished. Everything is darkness. No colors at all.

Now to the Light. What is light made out of?

Light is made out of electromagnetic waves. Much like ripples in water (very low frequency). Or like sound waves (Music, noise or speech, 20-20.000 Hz). Or like radio waves (100 khz up to many Mhz)

White Light as we know it consist of a multitude of extremely high frequencies of electromagnetic energy.

And colors? What makes up the colors we see?

Our eyes are made with receptors that react to different wavelengths of light.

Lets simplify the spectrum of light and say that only Red, Green and Blue wavelengths of light exist. When these wavelengths are combined, we perceive this as White. No color at all.

When the White light hits an object, then this object may reflect most of it and we perceive the object as being plain white.

If the object absorb Green and Red wavelengths, then we would say the object is Blue, because it reflects the blue wavelength.

If the object absorb Green and Blue, then we would say the object is red because it reflects the red wavelength.

In the real world, different objects absorb different wavelengths of light to a varying degree. The remaining reflection will be the color we perceive the object to be.

An object that absorb most all light will be perceived as being black. No light to give the indication of a color. This is also why Black is not considered a color even though we think of it as being one.

White is likewise not a color. It is in fact an even mix of all the other colors.

Answer 2

we can see colours only because the objects we see reflect part of the visible spectrum. White light is made up of red, orange, yellow, green, blue and violet light. We can see objects as different colours because they absorb and reflect parts of this visible light. For example, an object that is red appears red because it reflects the red part of the spectrum and absorbs the other colours.

dont get it