font
It goes well with Playfair Display, Catamaran, Freight Big, Prata, Cormorant Garamond and Notera. If you're thinking about using Muli then try
People commonly tag it as development, business, design, portfolio, coffee, programming, travel, home, video and collaboration. You can get it from Font Squirrel and Typekit.
Muli on its own
12 Muli samples