Sumi palette
Perennial Hollow
From #843b00 ink through #b26434, #d07f50, #d9936b to #f7af87 light, Perennial Hollow is a monochromatic progression that holds together at any size. Use it for national-park posters with layered mountain silhouettes. The darkest and lightest stops clear AA for large text.
orangesumifive-stop
#843b00
#b26434
#d07f50
#d9936b
#f7af87
The generator opens with #843b00 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.