What was kakashi's ANBU code name?

I need to know for a fanfic

Empire5392015-08-27T16:09:25Z

Kakashi's ANBU code name was never revealed or even really touched upon, so feel free to make up whatever you want.

Topaz2015-08-27T19:18:02Z

I don't think they ever mentioned it and also they usually changed their code name with each mission.

Light2015-08-27T16:13:36Z

kakashi