"Easter Eggers" is a general term for any chickens that lay blue or green eggs.
Ameraucana is a specific breed of chicken that lays blue or green eggs, and has cheek feathers (muff/beard).
Araucana is a different specific breed of chicken that lays blue eggs, has a different style of cheek...
Maybe Rhode Island Red, which should have yellow legs--but wrongly colored legs do occasionally happen in hatchery chickens.
Dark legs are often found on Easter Eggers, which can have any color of feathers, so you might have one of those.