Just some thoughts to share: In a conversation with my wound care nurse, the topic of "skin-toned" appliances came up.
Remember the Crayola crayons, and the one called "Flesh", and that it certainly didn't match every skin-tone on this Planet?
In our talk, my ostomy nurse was saying that a study had been done to determine what color(s) of appliance would be least visible under most every type of clothing and fabric against every skin-tone. It turned out to be GRAY.
So, if visibility through clothing is the concern, gray's the way to go, apparently. (I haven't checked to see if any ostomy appliance manufacturers are making them in gray.)
As for other colors of appliance created to complement or "accessorize" an outfit...? I can imagine manufacturers doing that, then increasing the prices for "new" colors, custom designs, etc. I can also see the marketing departments of these companies waiting impatiently for Pantone's Color(s) of The Year! LOL (2021's Colors are, by the way, a sunny yellow...AND a medium GRAY!! LOL)
P.S. - Has anyone checked out the price difference in office supply websites for a basic black Swingline desktop stapler vs. a red one, as seen in the movie "Office Space"? I have, and it's amazing how much money people are willing to pay for something that...iconic.
Coloplast makes grey pouches. The grey is like a fabric over the clear plastic. They are wonderful! I have had an ileostomy for 45 years and these are the nicest pouches ever!