L-Squared, Color: Navy Dune 55/5710 shown with chair, September 27, 2017 by Valerie Jones L-Squared, Color: Navy Dune 55/5710 . Image shows several repeats of L-Squared and chair used as prop. L-Squared is a woven flatweave fabricated with heathered yarn in background and 2 dominate top colors to create a plaid design.