You did not point out a color you saw. You pointed out a distinct lack of color which you noticed.

If I post you a picture that shows a black car, and I ask you what colour the car is, wouldn't you say "black"?

If I asked you what time the sun will come up, wouldn't you say dawn?

This is the second time you've dodged the question.

I would indeed say the car is black. And black by definition means the absence of color. Therefore I would be telling you that the car does not absorb color, and you might say it has a severe color defficiency. But that all makes for rather bland conversation, so I wouldn't go into so much detail. I would just tell you that the car is black.

If you ask me what time the sun comes up, I will not correct you and point out that the sun doesn't go up or down, it is merely an illusion caused by the rotation of the Earth which we cannot perceive from our position on the Earth looking out into space. That wouldn't answer your question. I would ignore the semantics of the situation and tell you what time dawn will occur.

If you are talking about the effect of gravity and suggest that dusk is caused by the Earth pulling the sun below the horizon, I will definitely correct you. We are not talking about cars, we are talking about colors.

You guys are drifting quite a ways off topic.

Then if someone says "I'm not sure I've ever seen a game that is only grey/brown, no idea what those people are talking about" and another dude says "How about this" and post a photo, and I look at it and see several colours, I point them out.

Black included.

"The colors used by the game shown in this picture are limited to greys and browns."

"But there is also black."

"That's not a color."

"NUH UH"

You keep using that word. It does not mean what you think it means.

"What colour is this car?"

"I would indeed say the car is black."