Colours, pigments, light spectrum, black, white

A few days ago we had a short discussion about why objects are coloured the way they are, and it is known that different materials or chemical compositions absorb different colours from the light spectrum, thus a certain colour is reflected back to our eyes.

But what really happens with paint? Does that mean that each pigment is made of a different chemical composition? That itself makes sense, but what about mixing it? Does the change in colour occur because of the varying proportions of the 'foreign' chemical you're adding in?


Also, it makes so much more sense when they say black is a shade, not a colour. Due to the absence of light, the colour will not be reflected (above explanation). The question is.. why black? I mean, why black and not.. something else..? Something else not in the colour spectrum, just SOMETHING ELSE.

So what material is black paint made of?? Black isn't even a colour on the light spectrum, so what makes objects appear black with the presence of light? Also, there's lamp black, jet black, obsidian black. I'm guessing paints are created due to varying proportions of materials?

Might paint pigments feel different when we switch off the lights? Or they probably don't cause they're all chemical components.

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I should probably consult google for such answers and physics students might probably know the answer but.. I just felt I should write it down to make things clearer for myself, heh.

{edit} got the question answered with more research on the internet actually. Why is the world so amazingggg?{/edit}