
Redshirts are known for dying frequently, a problem that plagues TOS, and when we consider that red invokes aggression and stands out more it’s easy to see why there are so many dead crewmen on the Enterprise’s roster.

Crew members know Bones is a reliable doctor, even when he’s not asserting that point to Kirk because they’ve been conditioned to trust the blue uniform he wears. Now, taking into account these supposed meanings, it’s easy to determine why command has bounced from red to gold and medical has stayed consistently blue. Yellow - Caution, Courage, and Inquisitivenessīlue - Trustworthiness, Reliable, Confidence Let’s first break down the color meanings: Playing with the psychology of color, the theory that color impacts human behavior, we can get a peek into why Starfleet possibly made the choices it did. We can easily pick out the science officers in a pack of Captains but why those colors for those specific positions? After TOS, command swapped with engineering and security while science and medical officers kept their trademark blue threads. In TOS (The Original Series) gold was reserved for command, red was for engineering and security, leaving science and medical officers with blue.

Designating the wearer’s career is the main function of a Starfleet uniform.
