Canon EOS-1D X Mark III DSLR Camera (Body Only) - Manual (Page 125)

[ ] Auto White Balance
With [ ], you can slightly increase the intensity of the image's warm color cast when
shooting a tungsten-light scene.
If you select [
], you can reduce the intensity of the image's warm color cast.
1.
Select [ : White balance].
2.
Select [ ].
With [ ] selected, press the < > button.
3.
Select an option.
125