It's really interesting to me how hardware color influences how I perceive the bag's color. I honestly feel that Hermes should refuse to make some colors with certain hardware. For example, one of our more controversial ones - crevette. I was googling and it looks SO BAD with palladium hardware. Like a washed out tangerine or something. But with gold hardware, the color warms and gets kind of peachy. It's not something that would work with my color palate but it is still pleasing for me to look at.
Glycine, another controversial one, is the opposite. When I see it with PHW, I think it's lovely and subtle and sophisticated and the PHW seems to bring out some mauve, lavender tones in the leather. With GHW, it looks awful and drab and well, fleshlike.
This last observation might belong in unpopular opinions thread, but I feel the same way about etoupe. Hermes should refuse to make it with gold hardware, it looks absolutely awful, lol. But with silver, it's a nice neutral. TO ME, lol.