here is my 11 week old splash English Orpington pullet...and if you look close you can see her legs are a slate blue color...which looks like what your chicks are going to have...but andulusians have they same leg color.
here she is at just a few days old...notice her legs
and again at...
yes they could be orpingtons too...it is really hard to tell the breeds apart at that age but I an sure on the colors...Original poster has a splash...and CarolinaHen has splash and blue....I am also sure they are not easter eggers...they just dont have that easter egger look...I believe they...
It looks like a splash to me...splashes take a while to get there splash markings in...when they get about 4-6 weeks old the splash marking should start to come in....and if it is not that I currently have no idea what it could be.