+1. Also love navy blue and the bitter chocolate with my medium grey suit. Not sure about the best color for a wedding, though.
Thanks for the all the feedback. I didn't expect to get so much of it and was mainly posting the swatches for others' use.
I agree with the several people who like the forest green, but I'd need it for May so the fact that it's out of stock probably rules it out. Plus, the bride will wear red shoes and, while I don't want to match anything, I don't want to clash either (or evoke Christmas).
In my mind, it's down to the navy/dark navy or the charcoal/silver. I think the former looks a bit better with the suit and is a combo for the ages, but the latter is a bit more formal and appropriate for a wedding. Not that formal is everything here; the bride's wearing red shoes after all.