Soleil is a sans-serif font. It goes well with Leitura News, Futura PT, Tiempos, Adelle Sans, Kepler, CamingoDos and FF Meta Serif Web Pro. If you're thinking about using Soleil then try 24px for headers. Give 15px a shot for content.
People commonly tag it as tech, blog, app, simple, sans, agency, clean, design, photo and serif. You can get it from Fonts.com, MyFonts and Typekit.