The True Reason Mace Windu Ended Up With A Purple Lightsaber While there is a deep lore that Star Wars' creative minds have made to explain the difference between Mindus lightsaber color ...

This idea seems to have been left in Legends. The purple lightsaber is synonymous with Jedi Master Mace Windu. Mace Windu's purple lightsaber was a request made directly to Lucas by Samuel L.