Here is a long answer to what seems like a simple question. Regular, undimmed incandescent light is 2800K. Most fluorescent lamps trying to imitate incandescent are 2700K (so slightly warmer). Halogen, which is also an incandescent light source, is 3000K (slightly whiter in color than standard incandescent), although when it is dimmed, halogen becomes as yellow as any other incandescent light source. Manufacturers are working on LED versions of household bulbs (normally called A-lamps) that are the color of dimmed incandescent (2200K to 2250K). My current favorite warm-colored LED A-lamp is the dimmable Pharox  300 Flame. I am also partial to a dimmable 2250K CCFL (cold cathode compact fluorescent lamp) called the Microbrite  MB-801DL.