Conventional wisdom has these firmly in the formal camp, based (I assume) on their historic association with white starched/detachable collars. Either that, or because Gekko wore them; I'm not sure which cultural impact has more weight any more... Thing is, I can't help thinking of them as less formal than shirts in a single colour, partly because I feel that the addition of a second colour (even if white) to something usually makes it less formal than it otherwise would be. And partly simply because my own contrast collar shirts are older shirts with more wear & tear (I opted for white collar replacement instead of risking a poor colour match if the body of the shirt had faded), so they feel a bit more casual I suppose. Is it simply a matter of using this tension between formality and vibrancy in a creative way, to channel the overall look more in one direction or another? Does it make a difference if the cuffs are also contrast, or not? Thoughts? No poal because I prefer words to numbers, and more importantly, I'm too lazy to make one... Good outfits incorporating contrast collar shirts would also be appreciated, on the principle that I like pictures even more than words.