Hi, Easter Eggers can give almost any color egg. Since EE's are not a recognized breed rather a cross of Americauna's or Araucana's with another breed. An Americauna or Araucana has to meet certain breed standards to be really considered as such. Those that don't usually get tagged as EE's as well. An Olive Egger is the result of breeding a Blue tinted egg breed with a brown tint breed. It's called an Live egger but it could also be considered an EE.
At least that's my understanding about it. Forgive me if I got it wrong.
Olive eggers are blue egg layers like Ameraucanas, Araucanas, or Crested Cream Legbars, crossed with chocolate layers like Welsummers, Barnevelders or Cuckoo Marans, but still could be considered EE's yes.