Spectrum uses Adobe’s brand font, Adobe Clean.
To use the Adobe Clean font families, you’ll need to download them through the Adobe Developer Console using your Adobe ID. You’ll be asked to accept the Adobe Developer Terms of Use before using these.
Adobe Clean is Spectrum’s primary typeface. It's used for Latin-based languages as well as Greek and Cyrillic scripts.
Adobe Clean Serif is a companion font family to Adobe Clean. It covers most Latin-based languages as well as Cyrillic alphabets and Greek.
Adobe Clean, Adobe Clean Serif, and Adobe Clean Han are restricted fonts for the exclusive use of Adobe products and software.