You can change the bulbs to a 6k or 8k bulb, the bulbs generally cost around 250 ~ 300 a pair, go to
http://www.hidexpress.com/ and look at the colors and prices. The OEM Xenons will look blue-ish or purple-ish from certain angles , but when you look directly into the beam they are pure white, and keep in mind also that when you turn on the Xenon lamps they will look bluish but once warmed up they will be pure white.