See also /cnick.
Enable or disable random nick colors.
If enabled, the random nick color will be a full $rgb value (instead of just color 0-15), and if the color is to close to the background color, it will be inverted.
Enable nickcolors for messages, Nicklist or both.
Enable or disable nick colors.
Enabled:
[42:42] <Nick2> Writing some text
Disabled:
[42:42] <Nick2> Writing some text