Examples of websites using
Omnes
(Omnes is a sans-serif font designed by Joshua Darden, Eben Sorkin, and Viktoriya Grabowska in 2006 and released by Darden Studio. It is available in multiple styles with a wide range of weights and matching italics)
with
Roboto
(Roboto is a sans-serif font designed by Christian Robertson and published through Google. The font family consists of 12 styles, including regular, italic, bold, and bold italic variations)