How to Use PostalEASE to Manage Your FEHB EnrollmentLite Blue is a user-friendly online platform provided by USPS. It is designed for convenient access to employee benefits, calendars, payroll, and other. Using Liteblue, USPS employees can stay informed about their job details, connect with colleagues, and handle various HR tasks. Liteblue USPS aims to simplify USPS operations and create a more effective work environment.