Your body naturally has a white balance. Your light generates a yellow tint on things but your eye corrects it, knowing what white is.. you add blue to subtract yellow..
since the light you are shining is brighter (since it is visible) then the lights around it will appear blue because your eye is still correcting for the yellow tint surrounding it..
some people's eyes will respond differently depending on how much of the light is being percieved and how much of the area around it is, some people will correct it back to white and some won't..
so some people will see this light as white, and others will see it as blue or even magenta depending on your current lighting situation.. if your eye does not have any other white to frame reference on it will still be subconsciously balancing for your last lighting experience..
the only way to know would to be in a totally dark room and shine it on something that you know to be pure white.. but then again your eye will adjust to make it white regardless what color the light is shining so that wouldn't really work either, lol
