When are colored hose appropriate?

[Bugbear]

Ok, I found you a couple of threads that deal with this issue of the colored kilt hose. I think there's some really good information in these threads if you want to read them.
Kilt hose observations

Formal Hose--loads of questions -
I saw plenty more in the search, but these seemed to be fairly new.

Man... I need to update my hose collection with some colored hose. Right now I only have the off white, and I've been putting it off while trying to fight with a jacket conversion situation. It usually works out in my life that all of it will happen at about the same time, though.