This is my opinion. It may be wrong. But i dont think so.
Kyle got Rahns saber.Green? Rite? Then as a light jedi he got Yuns in JK.Yellow? Correct? i believe it changed color in MotS because he made his own.Orange. Then he gave it to Luke Skywalker cause he didnt want to go to the darkside.(symbolism?) Then somehow he manages to find or make a blue one.