Really interesting info here. Thanks, guys. I guess it’s not surprising that they made the females continue to wear Spandex. In any case, this would certainly explain the color discrepancy even if the same dye was used.
The swatches from the quotable cards seem a lot closer to me than the teal/blue difference between Spandex and gabardine. I’ve always been a little dubious on the authority of those cards (for all we know, they came from rejects dye lots or something), though I do own some myself, including the Crusher and Troi ones.
Because all colors on screen are mediated to use through all sorts of grading, toning, film processing, and final-screen technical manipulations, I’ve always been in favor of matching what a color feels like in your memory (or looks like to you on screen) rather than the original real-world physical object before it went through all those intermediary processes.