Enhhh.... nah. If you look at the colour chart of accepted shades of blue (for eggs), a lot of them are very close to green. It often depends if the breeder has been breeding more for egg colour or chicken conformation. Hatcheries are just covering their butts, because I can bring in a blue egg from my blue egg girl, and get three different opinions as to what colour it is.Their eggs are always a sky blue. If the hatchery says they lay blue/green eggs, it’s an EE.
These colours around the rim are all "blue."