Adjusting the color rendition of a camera to compensate for different light temperatures.
White light is made up of different colours, which can be seen in a rainbow. When you are out shooting with your camera you will come across many different types of light, which give off different amounts of spectrum colours, which is called colour temperature. Lower colour temperatures lean towards red, higher color temperatures have more blue. The white balance is a setting in a digital camera with which you compensate for these changes in light colour and balance the colours of the whole spectrum more evenly in your picture.
The colour temperature comes from the colour emitted by objects at a certain temperature. Put a piece of metal in a fire, it’s mildly warm and glows red (low light temperature); activate the fire, it glows orange; use a welding torch and you could make it glow white (high light temperature).
*none*