Source Sans Pro is Adobe's first open source typeface, designed by Paul D. Hunt. It pairs well with Montserrat), Alegreya, Lora, and Ubuntu.
Source Sans pro was created by Paul D. Hunt who began his type career at P22 Type Foundry. Paul continued his journey into typefaces at the University of Reading, where he completed his Masters and was awared the distinction of Merit. Upon graduation, Paul joined the Adobe type team where he released their first open source font ever.
Source Sans Pro is available in six weights (Regular, ExtraLight, Light, Semibold, Bold, Black) in upright and italic styles. The typeface has wide language support for Latin script, including Western and Eastern European languages, Vietnamese, pinyin Romanization of Chinese, and Navajo.