For an outfit that's pared-down but can be dressed up or down in a variety of different ways, try teaming a dark brown blazer with white chinos. For footwear, stick to the classic route with burgundy leather tassel loafers.
Burgundy Leather Tassel Loafers with Dark Brown Blazer Dressy Chill Weather Outfits
This combination of a dark brown blazer and navy dress pants is seriously sharp and provides a clean and proper look. If you're not sure how to round off, a pair of burgundy leather tassel loafers is a savvy pick.