Lato is a sans-serif font. It goes well with Montserrat, Open Sans, Roboto, Playfair Display, Proxima Nova, Ubuntu, Georgia, Droid Serif, Arial and PT Sans. If you're thinking about using Lato then try 20px for headers. Give 18px a shot for content.
People commonly tag it as
design, portfolio, modern, tech, writing, agency, list, clean, photo and ecommerce.
You can get it from
Font Squirrel, Google Web Fonts, Open Font Library and Typekit.
on its own
81 Lato samples