There have only ever been two colors of Bloodline gloves made, maroon and black.
If you are looking for the 6-finger trap (1275T), they were only made in maroon (the model has been discontinued). If you mean the 1275MT modified trap, also been discontinued, but they may have made a few black ones. Most you find will be maroon.
I see one about once every couple months either here or the bay.