i don’t think anything like that exists. there was some previous discussion here: https://forum.inaturalist.org/t/search-observations-by-color-etc-on-identify/3312.
i can think of a way to automate this from the client side, but it involves actually downloading and processing all the photos you want to search through. so it’s not a very scalable option.
note, too, that the color filter in the place page seems to operate at a species level, not an observation level.