White balance (WB) is the process of removing unrealistic color casts, so that objects which appear white in person are rendered white in your photo. Proper camera white balance has to take into account the "color temperature" of a light source, which refers to the relative warmth or coolness of white light. White balance or color balance is one of the basic concepts of photography.
Color Temperature
The color temperature of a light source is the temperature of an ideal black-body radiator that radiates light of a color comparable to that of the light source.
White Balance Presets
Most of the DSLR cameras are facilitated with white balance presets. These are set to particular Kelvin numbers by the makers. Presets also depends upon the makers and different DSLR models. Here are some presets available in most of the DSLR cameras.
Daylight
fluorescent
Auto White Balance
cloudy white balance
tungsten
flash
Hue
Hue is the aspect of color which is described as “red” or “yellow” etc. It is one of the three main attributes of perceived color. The other two are saturation and brightness. Saturation: purity or strength of color, due to the absence of black, white or gray.
