Inferi black is amazing, its dark grey almost midnight grey with the red tinge to it in the light, it's absolutely stunning.
if you spec your seat up, just to put everyone straight here goes to SEAT.com not SEAT.co.uk website. so you maybe getting a european available colour. if you want the definite answer, speak to your dealer about colours, they should have an upto date colour
brochure/sample on display if your interested. you can never guarantee what colour is available off a website and they never give you a good enough reflection on what the colour is really like in real terms.