This stitch is called Rack. It is a pattern of three rows, repeated twice here.
Here it is in a scarf. Making a three row pattern was interesting when it is a five row color pattern. Fun!
My samples are getting larger and larger. Need the bigger size just to show the pattern. This one is called Block and Offset Shell.
Because the pattern is so large on this one, I made a lap blanket instead of a scarf. Took forever because I really didn’t like this pattern. It just looks like stripes from two different blankets pieced together.