Scoreboard player colours...

I’m an server owner and I want to have a scoreboard where all admins are a certain colour and in a certain team, how could I do this as I’ve seen it before?

Depends on the admin mod being used. Assmod uses a sandbox_teams plugin which can be found on gmod.org however ulx has a differen’t setup. There’s something on the ullyses forums, I can’t remember what it’s called. uTeam I think.