I had read that white eggs are, of course, white and that brown eggs are white eggs with a brown coating and that blue(or blue/green) eggs are blue all the way through and that olive eggs are blue with a brown coating. I have some pullets that are half CCL and half white leghorn and some of their eggs are blue on the outside and white on the inside and some are blue all the way through. I also have some pure CCL pullets but I don't think they are laying yet. Here is a pic of the eggs. Can there be a blue coating too, like a brown coating on the egg?