Sock with simple 3-color design on a different background. The cuff and leg are knit flat, the leg is seamed, the heel is knit, then the foot and toe are knit in the round.

This pattern has both a traditional “chart” (image on graph paper of which color is worked where) and a chart-knit chart (tabular representation of the same information, saying how many stitches of each color to work before switching to the next color).