Benefits Programs and Key Dates Aboutuspscom Liteblue is a user-friendly online platform provided by United States Postal Service. It is developed for trouble-free access to worker benefits, schedules, compensation, and additional. Using Blue Lite, USPS employees can stay updated about their employment details, connect with colleagues, and handle various HR tasks. Blue Lite USPS aims to simplify USPS operations and establish a more productive work environment.