I've read, though I forget where, that in the Middle Ages parents were likely to tell the priest (who would record the births in his parish) that they wanted to name their daughter Julian, Philip, Robert or whatever. Being educated men who knew their Latin, the priests entered the names as Juliana, Philippa, Roberta or whatever; but in real life those forms weren't used. (This could well not have applied to the daughters of literate parents; I just don't know.)
In today's world, it would look like just another male name turned female; no different from James.
I like Julian for a boy. For a girl, the only Juli- name I enjoy is Juliet. So, Adrian and Emily perhaps?