Have your in game name be any one color you want EXCEPT staff colors. (You can't ask for Dark Red (&4), Red (&c), Magenta (&5), hot pink (&d), or cyan(&b).
Staff will need to change the color for you. You can change it as many times as you like, but frequent requests may be turned down by busy staff. You may choose hex colors that don't look like staff colors as well.
/colors and /cmi colorpicker let you see the codes to tell staff what you want.
Includes nicknames if you don't already have access. Staff will need to apply them for you.