I feel drawn to very different color palettes in spring vs. fall--but I look very good in traditional fall colors, so I like wearing them. I look more washed out in lighter colors, which I associate with spring.
In spring, I like to wear pastels (pink, mint, lavender) grounded with a darker neutral. In fall, I gravitate toward gray, black, dark brown, toffee, burgundy, and mustard. Yum!
I wish I could wear the same pieces for fall and spring, since that would save some wardrobe space (and some money!). But I personally find that many colors that feel "right" in spring don't feel right in fall, and vice versa.