I had noticed the Project Spectrum buttons on some blogs, but I really hadn't paid attention until I read a post in Panhandle Knit and Sew and realized what it was. So I followed the button - sounds like a fun thing to join in on and (This is the bizarre thing) the colors for this time period are gray, blue and white. And, here are the socks I had been working on this month, before I ever read about Project Spectrum.
I seldom buy blue yarn - it's just not a good color for me, but I wanted to try this Regia cotton blend, and I wanted socks to wear with jeans. The gray socks are Cashsoft 4 play. I found the pattern stitch in a couple of books. In the Barbara Walker Treasury 2 the version is a little different, but is called Turtle Tracks.
I knitted both on size 2 needles, starting with 60 for the striped and 56 for the gray. I had some trouble with ladders on the striped ones, but my experience has been that these will disappear after the first washing.
Another view of Turtle Tracks. I really like the cable-esque look combined with some eyelets. This is an easy pattern to follow - only eight rows with YO's and decreases that move over a stitch every other row.