It's the brown from last season. I'm pretty sure she dyed her hair at the end of November, if that helps, and I think she shot the lookbook in October/Early November.
The lookbook is gorgeous. I saw a backstage shot she took and they all look fantastic so I can only imagine what the entire collection looks like on her, Vlada, and the other two girls. ^___^ Hopefully the website updates soon. As in RIGHT NOW. As a Christmas pressie!!