At first I was thinking that a solid white kilt would look dreadful but then Hamish had to go and post a picture of himself looking stunning in one and I had to rethink my opinion... It would be a shock to see someone say "I wonder how ________ would look?" and Hamish didn't have a picture of himself wearing it .

I do want to jump on the "high maintenance bandwagon" and say that white only looks good for about 15 minutes after putting it on. If you are getting it simply for a wedding then it would be nice but it's a bit of an investment for a one-time outfit. Personally, I would wear black but if you really want to wear white, I would suggest a white jacket and regular tartan kilt.