There are different shades of blue, light blue, dark blue, medium blue with lacing. blues that have darker heads and neck,and so on, just like there are different shades of each race. I might be really pale compared to another person of the same race, but we are both still white. Then there is black and am sure you know what that looks like, some have a greenish blue sheen to them and then there is splash which is like white with black and blue speckles. All of these are breed together to get more blue, black, and splash offspring. Different pairings have different outcomes, if you would like to know the outcomes I could post them. Maybe you thought it was blue, black and, splash, because if came from BBS parents?