I think it's fine in the UK or the US. Some people won't immediately clock that it's a Greek myth name, pronounced according to the same rules as all the other Greek myth names, but they'll pick it up pretty quickly. And in a modern class full of Niamhs, Ifeoluwas, Heulwens and (if they're very unlucky) Boglarkas, she'll be fine.
However IME these names really don't travel well. Anglophones have a fifty-fifty chance of getting them, and Greeks, of course. But outside of that you're screwed.