Roboto with Roboto Slab in action on knowmadics.com

.header-1 { font-family: Roboto, Helvetica, Arial, sans-serif; font-size: 23.8px; font-style: normal; font-weight: 300; letter-spacing: normal; line-height: 36.89px; text-transform: none; color: #FFFFFF; }
.header-2 { font-family: "Roboto Slab", "Times New Roman", serif; font-size: 53.2px; font-style: normal; font-weight: bold; letter-spacing: normal; line-height: 61.18px; text-transform: none; color: #FFFFFF; }
.content-1 { font-family: Roboto, Helvetica, Arial, sans-serif; font-size: 14px; font-style: normal; font-weight: normal; letter-spacing: normal; line-height: 18.6667px; text-transform: uppercase; color: #999999; background-color: #FFFFFF; }
Roboto is available from Font Squirrel, Google Web Fonts and Typekit.

Roboto Slab is available from Font Squirrel, Google Web Fonts and Typekit.

Try this combination out in Pair and Compare.
Found by @mikesten on 11 Oct 2017.

Liked by:
@mikesten @cruzmarycruz @ichbinmartin @inemation @nadiark @Jelvix @franck_koty

Roboto with Roboto Slab