The colour is an orange-red. An identical reversed copy was made for Seed Of Destruction.
It's actually a charcoal gray colour. The colour-coded section on the (lower) left sleeve is beige, rather than black (as it wouldn't be visible). The badges are the same as the red jacket (even the pips on the left sleeve). There are large pockets on the front (Koenig often has his hands in them). There is no external belt to attach the commlock, and when zipped up a commlock cannot be worn underneath.
The badges are exactly the same: triangle on left breast (slightly higher on the chest than the other jackets); starburst and SAT on right sleeve; VJC, AMC and pips on the left sleeve. It first appears in New Adam New Eve (first part), followed by Beta Cloud and most of the last episodes of the series.
This jacket (seen in Matter of Balance and Bringers Of Wonder) is similar to the other navy jacket, but with the triangle symbol slightly lower on the chest and a greyer colour.

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