Benefits Programs and Key Dates AboutuspscomBlue Lite is a user-friendly online platform provided by United States Postal Service. It is created for trouble-free access to staff advantages, calendars, payroll, and more. Using Liteblue, USPS employees can stay updated about their employment details, connect with colleagues, and manage various HR tasks. Liteblue USPS aims to streamline USPS operations and establish a more efficient work environment.