I was always under the impression that the colour matches pins come on bands that were originally shipped with the corresponding watch colour. If you purchased an apple strap from apple separately then it would come with a sliver pin.
Apple Watch straps usually have a size stamped on them.
the hermes orange is very distinctive but i dont think it translates well to the fluoroelastomer bands. it looks cheap to me somehow. maybe if it were a tad more burnt orange? idk. wound't pay $100+ for one like they charge on ebay.