Mike,

To my knowledge and research, the Cowboys jersey color is Apple Barrel Real Navy. To my knowledge the team has never changed their uniform color for the dark jersey. That said, the 1994 special edition featured a much brighter blue. Apple Barrel Too Blue will do for that team. That uniform was worn periodically before the 2005 Cowboys re-issued the throwback uniform for Thanksgiving and Monday Night Games (occasionally).

The pants have changed on the Cowboys many times through the years in both home and road variations, but not the jersey color.

Again, photo references can be tricky so be advised.