you will have to wait some more for more of the adult colors to show.
could be B. boehmei, B. baumgarteni (or B. emilia) or a mutt.
once available, a picture of the spermatheca would also help (if it is a female) to tell wich Brachy it is.
@Noah Blades I've not seen boehmei with such a dark carapace at this size. I've not owned boehmei at this size before though. My only female I bought at 3.5". Unless she can be identified with absolute certainty, I of course will not breed her with anything.