I had a look into the database and think there are photos of different clones;
Hen and Chicks (Sempervivum 'Flamingo')
one is smooth:
another is velvety:
in germany we only know the smooth one - the colour is from a dark violet to pink;
the mother of 'Flamingo' is S. tectorum 'Atroviolaceum'
Hen and Chicks (Sempervivum tectorum 'Atroviolaceum')
so I think it has to be smooth and dark in spring....the velvety one gets green to autumn - never seen at 'Flamingo'
Peter