Blue and Green

[Darth Abomination]

I think I may be wrong but in the special edition its different from the original release and the one that came out inbetween was different to, as I said I may be wrong.

[DSLuke]

I think it is merely due to the fact that when the movie was released for the first time, Luke's lightsaber seemed to be more like white, instead of blue.

 

No matter the first one Luke constructed himself was a green one.

[Darth Abomination]

I'm going to have to watch all three versions now my girlfriend is going to kill me cause we're watching the movies tomorrow night.

[DSLuke]

Watch it tommorow then