Ok, I'll expand a bit, it'll go perfectly with my chocolate leather watch strap which has natural linen (waxed) stitching. And it wouldn't be very difficult to stitch up, a chocolate (or coffee, whatever's your poison) carrying case for a 60% board or even stitch and glue on a leather outer to hide the institutional blank plastic.
Yes, I'm a man who can sew.
The large amounts of rich dark leather, with the lesser quantity of light, off-white, stitching, contrasting with the cream or mostly off-white if you prefer keys with their lesser amount of coffee.