font
Effra is a sans-serif font. It goes well with Bryant, Adobe Caslon, Glyphicons Halflings, Bauer Bodoni, Georgia and Facit. If you're thinking about using Effra then try 26px for headers. Give 21px a shot for content.
People commonly tag it as design, agency, portfolio, development, typography, writing, sans-serif, modern, education and productivity. You can get it from Fonts.com, MyFonts and Typekit.
Effra on its own
17 Effra samples