Sumi palette
Topaz Crater
From #a43700 ink through #d95f30, #f97c4e, #ff946d to #ffc1ab light, Topaz Crater is a monochromatic progression that holds together at any size. Use it for hotel key cards and lobby signage in one system. The darkest and lightest stops clear AA for large text.
orangesumifive-stop
#a43700
#d95f30
#f97c4e
#ff946d
#ffc1ab
The generator opens with #a43700 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.