These are originals, not recasts. The majority of the Rin Tin Tin Fort Apaches cavalry came in metallic blue. My understanding is the powder blue sets came with Canadian Fort Apaches and the tan came in header box sets. I have also heard that the powder blue also came in header box sets, but not sure if this is true or not. I also have three figures in a red brown and a single figure in brown, unsure where they came from, I think they were mold test shots. In addition I have some gray figures that supposedly were the tan but turned gray in the dump.
They did make recasts that came in a dark non metallic blue in a stiffer plastic.