I disagree. The first pullet looks black to me, and the second looks like a very dark blue. I wouldn't judge their end color quite yet, the pullets could change quite a bit still. I agree your cockerel looks like he will stay nice and dark. In my flock, the roosters are darker than my hens too, I'm not sure if that's common, or a coincidence. For my own breeding I'm going to try breeding my darkest to my darkest.