GecktNot sure if you're still looking for those colours, but Mechcables has all their available colours in a few imgur albums. You can access those albums through the order form. (mechcables.com should redirect you to the order form)
TTheunsThank you, I actually went for a full custom set of cables from Clark Kables since they had TRRS cables to match altogether. Making my life simpler than to source a cables from different fabricators to match as a set.