I've read a lot about fake Ergo carriers on Amazon. I see that Costco isn't listed as a "featured partner" on Ergo's website. Any chance this is a fake Ergo...?
as to colors, if you look at the 2nd op pic post, it says assorted color, but your guess as to the assortment originally, and what is left.
also, OP may want to say YMMV on this