Adelle with Fira Sans in action on stitchdata.com

.header-1 { font-family: adelle, georgia; font-size: 36px; font-style: normal; font-weight: 100; letter-spacing: normal; line-height: 50.4px; text-transform: none; color: #1E2023; }
.header-2 { font-family: adelle, georgia; font-size: 48px; font-style: normal; font-weight: 100; letter-spacing: normal; line-height: 64.8px; text-transform: none; color: #1E2023; }
.header-3 { font-family: "Fira Sans", helvetica, sans-serif; font-size: 24px; font-style: normal; font-weight: 100; letter-spacing: normal; line-height: 33.6px; text-transform: none; color: #1E2023; }
.content-1 { font-family: "Fira Sans", helvetica, sans-serif; font-size: 24px; font-style: normal; font-weight: 100; letter-spacing: normal; line-height: 33.6px; text-transform: none; color: #1E2023; }
Adelle is available from Fontdeck, Fonts.com, Fontshop, MyFonts and Typekit.

Fira Sans is available from Font Squirrel, Google Web Fonts and Typekit.

Try this combination out in Pair and Compare.
Found by @mikesten on 10 Aug 2016.

Liked by:
@mikesten

Adelle with Fira Sans