also why robins are described as red breasts when they are in fact orange
Saying black isn't a color is only true for light-generated color, like on a TV output or night blackness. This is the additive theory of color, which is really only useful in physics.
Black is definitely a color when it comes to pigments, colors, and art. Plenty of pigments and molecular structures can create black. The subtractive theory of color is mostly what you'd interact with on a daily basis.
On a side note, very few objects are true black bodies. Pretty much anything we see on earth will still reflect some light. Plus I would personally categorize black is a color because it's something we can perceive and identify. I wouldn't group it with other "not-color" parts of the UV spectrum like infrared, ultraviolet, microwave...
I say 'Wibble'.
True black (which would be very hard to create as you say) is something that absorbs all visible light, just as true white reflects all visible light and is therefore a combination of all visible colours
I like gray aswell, because it just needs a tiny hint of colour ( a little stripe for instance) to make that colour look amazing and much more meaningfull. Instead of a chaos of colors where one is overscreaming the other and it is one cacophony and none of the colors is really done justice.
Think about which one is sad... (I wouldnt vote for the one that is creative and humble and thankfulll over the one that is ungratefull and wines and can't see the value of things (and with value i dont mean moneywise)
How about golden?