Nero. According to a BV SA, this was a SS08 collection color, though I bought it during FW08.
The same SA informs me that the material used is nappa capri, which she likened to having the shine of glove leather. It has a very soft drape, with texture showing in the strips (see 2d photo). In comparison, regular nappa has a tighter grain (smooth) and is more matte (see 3d photo showing torrent nappa in bad lighting--the color looks too yellow, sorry).
This colour is really fascinating. I mean, it's clearly a purple when you look at it, and then again it's not, the colour kind of changes (from almost black to purple and brownish) depending on the other colours around..
Some of the pictures are taken with flash and other without, altough the lightning is pretty bad becase its late evening/night in here.