All codes are displayed whenever a message is made. You'll be able to see yours that way.

[ it's a little annoying to not have a name attached, but if you can't change it then you adapt to it. she's just been signing her first message with her name so everyone knows who she is. ]

The only deeper meaning is that it reflects your 'color'. Everyone has a shade of red, blue or yellow - right now your text will be black, but in time it will reflect your code. It'll guide you in the quests to take on in restoring this world from the evil that plagues it.