Inter and Open Sans
The OpenNMS typefaces are Inter and Open Sans, which come in a variety of weights and offer flexibility of use. Consistent usage of these typefaces reinforces our brand language.
Both Inter and Open Sans are Google fonts, which are open source and free to download.
subheads use Inter
Inter is an open source font built for readability on computer screens
Body copy uses Open Sans, an open source font built with open forms and a neutral, yet friendly appearance. Open Sans is optimized for print, web, and mobile interfaces, and has excellent legibility characteristics in its letterforms.
Whenever setting type in color or on backgrounds, be sure to check accessibility standards to ensure sufficient contrast.