Paint Color for Bathroom Window and Door Frame?

Much to the confusion of some friends, family (and online strangers!), we are keeping the black and white floral vintage wallpaper in master bathroom. That is, we're keeping it until we hate it or until it starts falling down, whichever comes first. What we are eager for is a splash of color in the all b&w bathroom. We're in the process of stripping old white paint layers from the window and door frames, and are stuck on color suggestions. Re-paint the frames black? white? or go for a bright color?

One option is a yellow (actually a rich, mustard yellow in person) similar to this jar.

We'd love to hear your thoughts....