You can check the breed and see what color egg you will get.
I chose my girls by large brown eggs and friendly/ docile.
Bufff orpinton, barred rock and ISA.
1 Barred rock and two ISAs are laying.
Two eggs are light brown but one ISA egg is dark brown.
I figured after a few days it would get lighter but after a dozen i'm still getting moca not pink like the other two.
Your Easter egger should be blue/green but pink can happen.
Welsummers should have dark specks on brown.
You can get funny looking irregular eggs as the egg factory eats going into production.