I should know this, but…
Apollo astronauts once wore gold(ish) flight suits when training*. (Tom Hanks wears one in Apollo 13.) The jacket I got when I was on the Space Shuttle Support Team was light blue, and I remember light-blue (‘Colbalt Blue’?) flight suits for the STS missions. Now they seem to have gone to Royal Blue. (The relative lack of news coverage and that I haven’t been associated with the programme in many years has made it difficult for me to keep up with the details.)
When did NASA stop using the gold flight suits? Are they still using the light blue ones? If not, when did they stop?
*[sub]Note: I’m talking about the flight suits worn in the jets; not the pressure suits or ‘space suits’, as they are sometimes called.[/sub]