yeah.. just stay within the right wattage range for your car and stick with white lights..
you can buy blueish bulbs but those are tinted and as far as I know they ARE illegal. When you see the blue headlights on the road (usu. on more expensive cars) they aren't blue tinted. They Are HID headlamps- which are legal- just expensive.
I believe the average Xenon bulbs are A-OK.. but the people driving into you will hate you
hth
ripthesystem