I personally have the Bohmen 6000K HID kit in my car.... The reason is 6000K will NOT be blue, it'll have a hint of it, IF you wanted blue you should've gotten their 7500K kit.
If you've ever done your homework on HID's the higher the K rating, the bluer it is, but because of this you will lose light....the reason why HID's were made.
If you wanted blue, just go back to crapo HID lookalike bulbs.