Purple lightsabers are a popular color in the Star Wars universe and are often associated with Jedi characters who use the Force for good. In the Star Wars canon, purple lightsabers are rare and are usually wielded by characters who have learned to use the Force in unique and unconventional ways.

One of the most famous characters who uses a purple lightsaber is Mace Windu, a legendary Jedi Master who played a significant role in the Clone Wars and was known for his exceptional combat skills and mastery of the Force.

In the Star Wars expanded universe, purple lightsabers have also been associated with characters who have learned to use the Force from different traditions, such as those who practice the dark side, or those who use the Force for personal gain.

Overall, the significance of purple lightsabers in the Star Wars universe is that they represent a unique combination of power, skill, and mastery of the Force.