This pattern is available on Ravelry.
The Telly blanket by Dawn Catanzaro takes a diagonal approach to garter stitch stripes in three colors, working from corner to corner to create a pleasing shift from hue to hue. Simple and so addictive to knit—the hardest part of this project is narrowing down the choices for your own perfect color combo.
4 skeins windlass 708 / 3 skeins flare 705 / 4 skeins dinghy 710
40” circular in size US 5 / 3.75 mm
Long-tail cast on (link provided); increasing, decreasing.