Yep, chickengr, black to blue will always give you black and blue. However, the hens with chocolate won't breed true unless bred to a drake which also carries chocolate. Bred to a black drake the chocolate hen will have babies as if she's black and the blue fawns will have babies as if they are just blue.
thank you for all the information.
and people think if there is 1 male and 1 female that is a big deal, lol. I didn't imagine it is a science!