Multifactor Authentication Required for Access to LiteBlueBlue Lite is a user-friendly online platform provided by USPS. It is created for convenient access to worker benefits, calendars, salary, and other. Using Liteblue, USPS employees can stay updated about their job details, connect with colleagues, and manage various HR tasks. Liteblue USPS aims to simplify USPS operations and form a more effective work environment.