Thanks, all. Keep the thoughts coming! My top two thoughts were the magenta and the green (mist/lagoon) - I think the blush is probably too pale, the wisteria and the lighter blue too pastel easter-y. Not sure about the darker blue or the red, it just depends on what they look like in person. Some of the reviews say the colors are less vibrant and more faded IRL, but that may vary by shade.
Unfrumped, I see what you're saying about the focal point aspect of the magenta one - I love a good fuchsia that's not too red or too blue, but I don't wear it as much as I used to because it's such a bold color, and everything else in the outfit has to be very neutral and devoid of details or it just ends up being too much (for my preferences, anyway).
Since this has a definite winter vibe, I'd probably be wearing it over a lightweight sweater, so I could do my usual neutrals of black, gray, navy, or a color. Might work with a button-front shirt too. Maybe a small-scale print or plaid in neutrals? I might get the chance to stop by a local store and look at colors, but obviously sizes sell out quickly with this sort of sale so I thought I'd lean on the genius of YLF.