What tartan is your dress kilt? Grey goes nicely with most (not all) modern colours, but it doesn't fair so well with most hunting or ancient colours. It's that grey brown thing. If you need a jacket that will go with almost anything (but don't want it to dressy) try a Wallace jacket. It is black but it doesn't have all the embellishments of an Argyle. It also has a simpler cut and a cleaner look. I think this might be my next jacket.