Decisions...

My little sis is getting married in just over a month.  The dress above is what I will be wearing as one of the bridesmaids.  Overall, not so bad as far as bridesmaid dresses go.  What I am still unsure about is what shoes I should wear.  The wedding is going to be outdoors, so stiletto heels are out of the question unless I want to get stuck on a lawn.  That means either a thick/substantial heel, or a wedge.  That still leaves me pondering what color I should choose.  The wedding colors are latte (as on the dress) and cream.  I don't really want to buy shoes in either of those colors, but I don't want to be disrespectful and choose something too far out of the spectrum.  I'm running low on inspiration, so any suggestions?