You wouldn't want to come cycling with me. I take my favorite (at the mo) bidon, which is blue with a blue top, in my front bottle cage (Planet X carbon fibre job) and my Camelbak, shorter bidon, with black top in my other bottle cage (plassic Liv/Giant one with a blue splodge on it that doesn't quite match my bike. My pedals and saddle match, both being white but, I have black bar tape. I never match my jersey to my bike, nor do I match my Buff to my jersey.
Every so often, I take my CX out (Black and green) and wear a blue helmet with it.