Okay, they're here. And they do "look" orange when they're alone. When next to the orange in the Antarctica tartan they look a bit red orange. I'm guessing the usual fading when hand washed will make them a bit more orange and a little less red. They should work with the Antarctica tartan though. Now, have only the tartan necktie to compare them to.

The orange traditional garter tie looks very sharp with the navy blue Lewis kilt hose.

So there's two options plus grey kilt hose, maybe black...

Ron