well I guess first I should hope it is a girl in fact! haha! thank you for that info!I say "maybe". Fifty-fifty shot of her being an Olive Egger or a Marans mutt.
(edited to add)
This is just by my definition which isn't the sole authority on EE's. For me, if it doesn't carry at least one copy of the blue egg gene, it's just a nice mutt. As it is, your chick is only 25% EE by genetics.