gharris, the headlights are a 9007 bulb. The bulbs should be rated at 55/65. There are some out there that are rated at 80/100, but these I would not recommend as the factory headlight switch is barely capable of handling the lower wattage bulbs (put in the higher wattage bulbs and after about 15 minutes, put your hand near the headlight switch).
As for colors, that really only applies to HID bulbs. HID bulbs are a complete different monster than the factory halogen bulbs. Kinda like calling a Chevette and a Corvette the same vehicle. They are both Vettes. LMAO. Yes, there are some halogen bulbs that try to play off that they are "super white" or some other verbage like that, but really, it amounts to a coating that they put on the bulb glass and it blocks some of the light that the bulb makes to make the light appear whiter.
if you need to know more about HID bulbs, do some looking around here. I have a big write up that goes into more detail about HID bulbs than you probably wanted to know about them.