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

What everyone said about the certain snails that the dye came from. Plus, it spread to all royalty because of the size that Rome achieved, most of Europe was Rome at one point. After Rome fell, so.e Roman things remained. Royal purple was one of them.