She's at about a week now so I wanted to provide some updated pictures to see if anyone could identify her color or gender any better than before. Her tail feather growth makes me think it's a hen, because I've never had a chicken develop feathers this fast and end up being a roo.
Where did you get it? All I can say is my color guess is buff, but it isn't an Ameraucana, unless they are sometimes born with orange legs and they turn grey later.