OK... This will probably make no sense whatsoever and most likely senseless banter.... But for those that can wrap your head around it... I offer this hypothetical

Me and my friend were discussing colors one day. How red to me looks red, blue looks blue, green looks green and so forth. However, what if some people see red like this and see green like so?

How would they ever know the difference?

If someone saw the sky as "blue", it would be completely normal to them. They would associate the word blue with the color they are seeing....

What if we all see in different shades? How do you describe color?