first egg colour of an ameraucana

From what I understand, you can end up with white, blue, green or brown.

And the egg color will not change.  What color they start laying is the color they will always lay.

You most likely got Easter Eggers. Easter Eggers are the same as Ameraucanas and Araucanas bu EEs can lay any color egg. People say they are ameraucanas but they are not.

What you probably have is Easter Eggers, which are often sold from hatcheries as Arucana or Americana,  They are a cross breed, so each one may lay a different color, they usually have True Arucana/Amerucana in thier lineage, so you have a good chance of getting a green/blue egg.  Wait till they all start laying, you could wind up with 6 varying colours. 

Oh Yeah 

each hen lays a different color sometimes the color is brighter and sometimes it is lighter (hard boiled the shells color is more intense)   
EE hens lay pink, purple, blue, green, khaki, and aqua
so all you can do is wait and see!

I had an EE that laid and off white eggs.  It's always interesting w/ EEs.

I forgot. from Lutz,FL!!!!!!!!!

let us know what the rest lay.

Hoping for a green one for you

Please note that Easter Eggers are NOT the same as Ameraucanas and Araucanas.  For one ting Ameraucanas and Araucanas are totally different breeds.  Easter Eggers are not a recognized breed.  They are a cross of some sort with a bird that possesses the blue egg gene.  Whether that be an Araucana, Ameraucana, or another Easter Egger.

Since you got a beige egg, you definitely do NOT have an Ameraucana.  Others above are most likely correct in that you got an Easter Egger which was sold to you as an Ameraucana.  Another possibility is that some chicks got mixed up and the person who sold you the chicks didn't know what they were selling you.

You can do a search on here for the key words "Ameraucana" or "Easter Egger" and even use me as the "Author" and you will find more information on this topic that you probably care to read.

God Bless,