Star Wars Lightsaber Colors, Explained
How Lightsabers Get Their Colors
In the Star Wars universe, lightsaber colors are determined by the force of the Jedi using a lightsaber. More specifically, as noted on the official Star Wars site, lightsabers come from Kyber crystals, typically found in the frozen caves in the world of Ilum, which acquire color once attuned to a specific Jedi. (There are exceptions, however: at some points, lightsaber crystals were replaced by Kunda stones. More significantly, Sith usually use red-hued synthetic crystals.)
There are some caveats: many of these colors come from different aspects of the Star Wars expanded universe — movies, books, television shows, comics, and video games — and there may well be inconsistencies between the large number of writers in these various genres. Some accounts of how lightsabers came about may not allow for unusual colors that pop up elsewhere.
Which color would you choose?