It's colorway 502. The people on KR all thought that all of the Sockotta colorways splotched, pooled, or "sparkled", but this one is supposed to stripe. I'm not into the striping, but we'll see what happens. I need to get busy on my other projects first, but I can't wait to swatch this.
I did another pair of socks from Sockotta and at first I wasn't very impressed with the yarn. But, it is much less expensive than others, and they wear great and feel good on. One skein makes two socks.