every now and then somebody will see your braces, when you move in such a way as your jacket flaps, getting into a cab, if you take your coat off for something. I really don't like the look of either matching or contrasting braces. I have maybe a half dozen pair maybe a few more. Several are trafalgars with designs, one is red with pirate skull and crossbones on it, several are simple blue, burgandy, black, etc. I don't think that it detracts at all from what you are wearing if somebody sees your suit slide open and you have white and red braces on under.