Charcoal & yellow. This combination is similar to black and orange but not quite as halloween-feeling. It's also similar to black and red, but not as almost-sinister feeling, and if not sinister, severe. [To note, I like black and red, I have a black and red rep tie which can be hard to find, and I love it.] It's not a very often used combination. I don't see too many men wearing it. I like it quite a bit, when I pair yellow with a dark grey or dark charcoal. Navy and yellow feels collegiate, almost. Charcoal and yellow is just one click over but feels quite a bit different.
Bright and dark, warm and cold.
A cold, sunny day in February.