My BMs are looking for some advice on what color shoes to wear. This is NOT a post about me saying "I want them to wear ____ color and they won't!", lol, it's our wedding party scratching our heads trying to think what would go best.

Fashion advice, please.
My color is yellow, a lighter yellow, not bright neon. If they want to wear yellow shoes, hey, they can go for it, but short of getting them dyed to match, that's not an easy color to find in the stores, so what are other thoughts? We think black would be way too "bumblebee". White? Tan? Gold? Any thoughts? Truth be told, I'm not really sure how much this matters -- it's a long dress, who's going to care about their shoes? -- but my girls are asking, and I'm fashion-stupid, I think.