Carbon black piccolo grenadine and English dot silk #2 (dark purple).
I'll try to shoot my Hober collection with a real camera soon.
+1 to advice given from Claghorn, scurvy, and tdude. Also, you may want to take a look at the charcoal gray/silver grenadine grossa.
Stealing this thought from scurvyfreedman today (although this may be too flashy...). This is the dark purple diamond weave (3-fold construction) in action.