Here's my standard advice for almost any kilt:

Lovat Blue, Lovat Green, Bottle Green, Dark Red/Claret/Burgundy

Here are two recent strings which also address this issue:

http://www.xmarksthescot.com/forum/f...t-white-62942/

http://www.xmarksthescot.com/forum/f...te-hose-62944/