One of my favourite colour combiantions is amethyst and brown. The combination works well in many kinds of beads - florals, graphic, dotted or sculptural. I also think it's an amazing colour set for autumn. Makes me think of falling leaves and the last flowers of the season.
Here's a pendant bead featuring these yummy colours:
It's put togheter with sterling silver parts and swarowski chrystals. Ready to hang on a necklase, thanks to the bail.