Pattern: Lilac Sock Pattern by Jean Townsend.
It's free! All you have to do it ask and she sends it to you in .pdf format. Can't beat that deal for a great pattern.
Yarn: Opal sock yarn, 75% wool, 25% nylon
Color: Smoke 1657 (the only brown Smoke)
Needles: Addi Turbo #1
Gauge: 8 stitches/inch, 10 rows/inch
Inspiration: Daughter Heather asked from brown socks for her birthday.