Unless you have a different chart than mine which is the British Araucana chart and that fellow(Frank Decmar) made all the US charts as someone had told me. "A" varies from A1 to A15 which is a wide varience from Grey/Gray to blue-grey. You probably want egg colored A7,A8 , A9 and A12. Mostly blacks and silvers lay the better colors in that range as stated on the club site but you may want to do a search on their to see which are the best ones for colored blue eggs. I had silvers and have blacks and they did lay in that range. My blacks still lay in that range 2 out of 3 birds while the other is A14. Good luck try the club site also there may be someone there plus I believe Pips&Peeps has what you may be looking for. Pips&Peeps also sells day old chicks.