Cantarell
Google Fonts · 2009

Designed as the GNOME desktop's default UI font, Cantarell is a clean, screen-optimised humanist sans that performs reliably at small sizes.
About
Cantarell was purpose-built for digital interfaces, making it an honest choice for web and application typography where clarity at small sizes is paramount. Its humanist construction gives it warmth without sacrificing the neutrality needed in UI contexts. Available in Regular and Bold, it covers essential weight contrast for interface hierarchies, though its range is modest compared to more comprehensive system typefaces.
Classification
Cantarell is a humanist sans-serif originally developed as the default interface typeface for the GNOME desktop environment, with clean, open forms optimised for screen rendering at small sizes. Its design balances friendliness with functional neutrality.