A repeating pattern with a mid-century modern feel (to my mind, at least):

Maybe if I coloured it in a mid-century modern palette (or Excel’s closest approximation):

This quilt design looks a bit complicated to assemble, but it’s actually a fairly simple block – just rotated and repeated:

Squares and rectangles are all you’d need. The blocks have been chopped a little along the top, bottom and sides of the quilt design, just to leave a little more white space there.

As usual, I designed this with solids in mind, but it’d make a great scrappy quilt too!