Photography Tip of the Day
Different light sources have different color “temperatures” so photos taken under different kinds of lights will look different. Tungsten light, which is most similar to the classic incandescent light bulb, emits a warmer, orange hue, while natural daylight and fluorescent tend to be cooler with a bluer hue. The camera has to be balanced to whatever color the light source is (this is called white balance), in order to capture the natural look, but you can experiment with mixing and matching different colors within the same photograph for different creative effects.
Here is a photograph (not taken by me) that demonstrates the mixing of cool and warm color temperatures in the same image.