Examples of websites using
Averta
(Averta is a sans-serif font designed by Kostas Bartsokas and released by Intelligent Design in 2015. The font family consists of multiple styles and weights)
with
Avenir
(Avenir is a sans-serif font designed by Adrian Frutiger and Nadine Chahine, released by Linotype in 1988. It features clean and modern letterforms and is available in multiple weights and styles)