I'm going to make a sweater using a striped herringbone. Will post the chart when I put it together, but this is what I'm basing it off of. I'm thinking about 6 colours, with different shades of grey and one to two purple colours.
Crochet grille stitch diagram that has a kinda sorta jacquard'y look to it. I may be reading it wrong but looks like you just keep reversing how two basic stitches sit over top of each other throughout the pattern.