Star Wars lightsaber colors, explained
 

What lightsaber color would you choose? This chart shows all of the known colors in the Star Wars universe, along with what we know about the characters who typically use them.

https://cdn3.vox-cdn.com/thumbor/TuD...bers_rev.0.png
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Star Wars lightsaber colors, explained - Vox

i'd stick to the green one http://i63.tinypic.com/98dhqd.jpg

bring it!!!!
http://i.imgur.com/UW00QcD.gif

that is really interesting.

Now THIS is information I can really use!

May the Force be with BM. :)

but the colors are reversed for alliance vs empire spacecraft.

tie fighters shoot green and xwings shoot red.

you asked and now i went full nerd and found something for you. may the force be with you! there are two answers :1orglaugh:1orglaugh


If I recall, the color of a blaster bolt (character-scale or starship scale) is determined by the quality of the gas used in it - higher quality gives you green, lower quality gives you red. The Rebellion didn't have access to the highest quality gas, and had to make do with the lower quality ammunition.

(An aside: Yes, gas. That's what they collected at Cloud City - Tibanna gas, essential for the creation of blaster ammunition)

With lightsabers, it's all decided by the color of your focusing crystal. Blue, green, and red are most common, but other colors aren't unknown. Synthetic red crystals are also common among the Sith, who prefer the speed of synthesizing to the quality of those you can discover naturally. Vader and Palpatine both used synthetic crystals in their lightsabers.

Interestingly, if you put enough time and effort into creating a synthetic crystal, it can end up any color - both Luke's lightsaber from ROTJ and Jaina's lightsaber (from the Young Jedi Knights book Lightsabers) are synthetic. Luke is described as spending months on his crystal in Ben's hut on Tatooine, and Jaina spends considerable time and effort on hers.

In the era of the Old Republic, the color of lightsaber a Knight used was a mark of his caste - Guardian, Consular, or Sentinel. This tradition was NOT carried over into the New Republic era, and may have fallen out of use by the time of the Clone Wars - it's never made explicit if such distinctions between Jedi were still made (other than Padawan/Knight/Master).

Edit: References:
Lightsaber color has been extensively referenced. Off of the top of my head, look at KOTOR (the original game and sequel, as well as The Old Republic RPG), I, Jedi, the Young Jedi Knights book Lightsabers, and the Jedi Academy Trilogy.

There's also references in the Wookipedia article for Blaster Gas that help explain the different colored bolts.

star wars - Why are the colors reversed between the blasters and lightsabers of the Republic/Rebels and Empire? - Science Fiction & Fantasy Stack Exchange

The nerdula oblongata just exploded.