
Here’s the standard color wheel set to Red, Blue, Yellow as primary colors.
You’ll notice that magenta is represented as almost a whole different color. It’s light red in the CMYK, light purple in RGB.
And
Cyan, baby blue, sky blue, etc. isn’t represented. Instead you get a blue-purple they call violet.
Light Red - Magenta
Light Blue - Cyan
Blue-Purple - Indigo
Light Purple - Red-Purple - Fushsia
We as a whole can’t decide what constitutes purple/violet in RGB model
Even if someone doesn’t know what a true “Indigo” looks like they are still experiencing that color for what it is. They will just call it Bluish-Purple or Purplish-Blue. And unless it really was the exact mix of 50/50 blue and purple it wouldn’t be indigo. It would be a equivalent to a Redish-Orange. A Bluish-Indigo or Purplish-Indigo.
Sorry for the walls of text I was learning and thought I might as well share.










You have things like grapheme-color synesthesia where people really do experience things different. They might see 2s as blue and 5s as green. So if they ever saw a 2 it would be blue. Like 5 5 5 5 2 5 5. Even though the numbers are all the same color to us someone with the synesthesia would see those numbers there in the color their mind associates them with automatically.