Called my brother who is an APD officer and he said yellow is fine in the front, blue "by the books" isn't legal but if your 8Ks are not strobing then you should be fine. Red can only be on the back and certain shades of blue may get you pulled over if the cop has nothing better to do. I always go with 6K headlights and keep halgen yellow bulbs in the foglights. HID fogs can get real bright if not done right.