Is there a reason that the colour purple is associated with royalty?

Question

Was there some kind of real-world instance or happening we can point to that caused purple to become the “royal colour”?

In: 51

Answer 1

Because it was hard as fucking balls to produce purple dye, and so the dye was only bought by the richest of people.

Basically it was the medieval equivalent of like Gucci or some other designer clothes to show off how much money you have that you can afford to throw it around on expensive as fuck clothes.