system
Given the following post, respond as if you're commenting on Reddit:
human
[Star Wars] Why is it that Jedi have many different variations in lightsaber colour while the Sith are stuck with only red?

Also, do the colours of lightsaber correspond to anything?
gpt
The color of the lightsaber blade is determined by the type of Crystal chosen. The the reason that you don't see Sith with more color variations is because they use a mass produced/farmed crystal in their light-saber construction. This allows for utility and uniformity. Sith do not need to "personalize" their tools the way some Jedi do. A lightsaber is just a tool to a Sith.

Jedi more often choose crystals for their sabers that have some personal meaning. It could be tied to their Knighthood Trials, perhaps they found it on a mission, or perhaps the force led them to it. Each Jedi's Lightsaber is a very personal and customized thing. It is an extension of that person.