Open Sans in action on privacy.com

.header-1 { font-family: 'Open Sans', open-sans, 'helvetica neue', helvetica, arial; font-size: 12px; font-style: normal; font-weight: bold; letter-spacing: 1px; line-height: 22px; text-transform: uppercase; color: #545E69; }
.content-1 { font-family: 'Open Sans', open-sans, 'helvetica neue', helvetica, arial; font-size: 24px; font-style: normal; font-weight: 300; letter-spacing: -0.25px; line-height: 33.6px; text-transform: none; color: #26334D; }
Open Sans is available from Font Squirrel, Google Web Fonts, MyFonts and Typekit.

Try this combination out in Pair and Compare.
Found by @mikesten on 4 Apr 2016.

Liked by:
@mikesten @jnce263 @Jimmy_Franko

Open Sans