White Balance

White Balance is a setting on a digital camara that tells the camera sensor where to set the white point along a shifting color scale. This white point is defined by setting the camera at a point along the 'Kelvin Temperature' scale that is often shown as a range from 25K (2500 Kelvin) to 65K (6500 Kelvin) or higher on some cameras. 

Different lighting conditions such as indoor lamps and outdoor sunlight have varying colors that require the camera to be matched to them in order for colors to appear natural. When the white balance is set to a specific Kelvin, any lighitng sources that match that Kelvin temperature will appear to have the correct color hues within the camera image.