Matching a navy jacket

[Panache]

I was thinking something like this as well a complimentary colour would be much better than a navy that is not a match, you might also look for a tartan waistcoat.

I second McMurdo's suggestion of complimentary color. Red or Maroon would look quite handsome with Navy. A regular suit's vest can be modified to a kilt waistcoat with a couple of safety pins. Check those second hand stores.

Cheers

Jamie