Historical evidence reveals that humans possess the remarkable ability to render certain physical appearances invisible if they do not focus on them, including something as fundamental as a color.
Orange being seen as shades of either red or yellow is also why they’re called redheads, it predates the word Orange entering the english language and being a better descriptor of most of the shades in that range of hair colors.
For the longest time orange was just called yellow-red so it tracks.
Humans didn’t really care much about details until lately.
Iirc either Greek or Latin use the same word for hands as they do arms or something like that.
Orange being seen as shades of either red or yellow is also why they’re called redheads, it predates the word Orange entering the english language and being a better descriptor of most of the shades in that range of hair colors.
In modern Greek there’s still no distinction between arms and hands, or feet and legs.