Yeah I have a set of quad LED sightlight bulbs, plus my number plate bulbs, which are very blue, I never drive around with just the sidelights on though for fear of getting pulled over, my headlight bulbs cast a very white (slightly blue) light and the glass is blue to look at.
I was hoping that your average traffic cop would just tell me to change them. Maybe i'll put the standard white ones back in as it's asking for trouble if I get points, plus the MOT is coming up next month!