My all time favorite eye shadow is Shu Uemura ME 945 for smokey eyes. It's a little brown, a little silver, a little black, a little purple... all at the same time.
I also like from Nars Odine (picture is not on Sephora website). Great brown with gold flecks. This palette is really good for everyday boring makeup.
Bellisima
I also like from Chanel a cream eyeshadow called Rivera (I usually wear this for day looks).
I also really like to play up colors when I have the liberty to be wilder with my makeup. For work/evening looks I will usually do a plum color mixing it with one of the colors above or a dark green color. I have this great dark green from Trish McEvoy that has gold flecs in it. I love to use this as an eyeliner.
I have dark brown hair with some subtle carmel hightlights, my eyes are dark hazel and my skin is a medium olive complexion. I am not sure of the rest of your coloring complexion but what posted earlier in the thread are colors that work well for me.