Facebook at Work
Workplace first appeared as Facebook at Work in 2015, during a beta trial.
Workplace by Facebook
Facebook at Work came out of beta in October 2016, rebranded as Workplace by Facebook, however commonly referred to as just Workplace.
Workplace from Facebook
Workplace by Facebook was slightly rebranded to Workplace from Facebook at the beginning of 2020, although just Workplace was still in common use.
In early June 2021, Workplace announced a visual refresh of their brand identity, which would slowly roll out over the remaining year. The refresh included adopting a purple colour to represent the logo and workmark, replacing the dark grey that had been present since 2016.