What determines a Kerbal’s uniform


I've noticed that both in the mini-window in staging mode and in the Astronaught Center some Kerbals wore a different uniform. Sometimes blue, sometimes white and sometimes yellow.

Different uniforms

Are these special Kerbals? What determines the uniform?

Best Answer

Orange Uniforms are unique to the original three (Jebediah, Bill, Bob).
These also "respawn" (at a quicker rate than normal recruits).

Blue Uniforms are ground uniforms for new recruits that aren't hired yet.

White Uniforms are spacesuits for hired recruits.