White Balance

White Balance allows you to color correct your image per-camera, using color temperature and tint properties. Read more about White Balance here.

The White Balance Picker allows you to select an area of your image that is supposed to have a neutral hue, i.e. a white or grey material.
Shift-Click on the Picker icon to Reset the White Balance to default settings.

Temperature (in Kelvin): Blue to Orange color correction.

Tint: Green to Magenta color correction.

The White Balance Picker is slightly different in the Image Editor / Compositing Editor, it will appear as a Color Swatch that you can click on to access the Eyedropper.

Note: To make sure your camera uses its own settings, you need to enable the White Balance panel for your camera, or it will use the latest Scene camera setting that was used.