I think no matter what, as long as it sounds good with the last name, you should go with it. We're on the other end of it...if we have a boy we're going to name him
Indigo, so the more blue names out there, the more accepted they'll become. Also, most names get shortened either by family or by their friends, so think about what might happen to it, and if you still like it in all forms, everyone else will get used to it and they can piss off :)