Samsung UN55ES8000G E-Manual page 79

Adjusts the color temperature of the
picture so that white objects look white
(instead of, for example, slightly pink or
slightly yellow) and the overall color of
the picture looks natural.
R-Offset / G-Offset / B-Offset: Adjusts
each color's (red, green, blue) darkness.
R-Gain / G-Gain / B-Gain: Adjusts each
color's (red, green, blue) brightness.
Reset: Resets the White Balance to its
default settings.