The right cool olives are magic on me; I once had a suit ensemble (with skirt and trousers) custom made of the perfect olive superwool. But I long ago gave up looking for OTR clothing in olive. Most olives I come across are warm-toned, which makes me look like death no-one bothered to prop up.
If olives are "in" this season, perhaps the chances of finding cool ones are better?
If you come across any long-lasting garments in cool olive, I would be very grateful for suggestions!