Cyan, violet, even blue/green aren't the same in every culture/language and sometimes even missing altogether.

https://en.wikipedia.org/wiki/Distinction_of_blue_and_green_...

It's also worth knowing how our sense for colours did evolve https://en.wikipedia.org/wiki/Basic_Color_Terms:_Their_Unive...

And on top of that the colours can differ in symbolism https://informationisbeautiful.net/visualizations/colours-in...