Color

Color is the property possessed by an object of producing different sensations on the eye as a result of the way the object reflects or emits light. Color comes from one source, white light, and when put through a prism, has different shades. Color was one of the defining factors of a lightsaber, as it indicated your affiliation.

Primary Colors
The primary colors are Red, Blue, and Yellow. The Sith are commonly afilliated with the color red. The Jedi are familiarized with Blue and Yellow. Yellow was the color of choice for Jedi Temple guards.

Secondary Colors
The secondary colors are Green, Yellow, and Purple. They are made by combining the primary colors. Green lightsabers are affiliated with Jedi. Orange lightsabers are rare. Only one purple lightsaber exists and it belonged to Mace Windu.

Red + Blue = Purple

Red + Green = Orange

Yellow + Blue = Green

Tertiary Colors
The tertiary colors are made by combining primary and secondary colors together. There are no kyber crystals with these colors.

Red + Orange = Red Orange Red + Purple = Red Purple

Blue + Green = Blue Green

Blue + Purple = Blue Purple

Yellow + Orange = Yellow Orange

Yellow + Green = Yellow Green

Warm and Cool Colors
Colors are also classified as warm or cool. The warm colors are Yellow, Orange, and Red while the cool colors are Blue, Purple, and Green.