duotone

plural duotones

1. Any picture printed in two shades of the same colour, such as a duotype or duograph.

1. not comparableHaving two tones.

   He oozed prosperity from top hat to duotone shoes.

   1925, Life, page 21

   2 more examples

   We each wore blue sweaters over collared shirts. His was duotone, dark blue beneath the shoulders, periwinkle from the shoulders to the neck.

   2016, Ian Scheffler, “Proof”, in Cracking the Cube: Going Slow to Go Fast and Other Unexpected Turns in the World of Competitive Rubik’s Cube Solving, Touchstone, →ISBN, page 168

   The brown hair that she’d always dyed blonde had grown out to her ears, leaving just a few inches of yellow on the ends. Despite the duotone hair, her eyes seemed alert, although she didn’t smile at him as he approached.

   2019, Abby Tyler, The Special Delivery, Casey Shay Press, →ISBN