Press ~ to get the console and use /name [name] to set player name and colors
^1: Red
^2: Green
^3: Yellow
^4: Blue
^5: Light Blue
^6: Pink
^7: White
^8: Black
^9: Red For example, to change your name to "AmericaTheBeautiful" in red, white, and blue, enter: /name ^1America^7The^4Beautiful.