Sumi palette
Greige Ridge
Five stops tuned to sit together without fighting — #aa3d25 ink anchors the set, #ffc9bc opens it up, and #d76b53, #f6876e, #fe9d87 cross the middle in a monochromatic arrangement. Greige Ridge suits book covers that read at thumbnail size. The darkest and lightest stops clear AA for large text.
redsumifive-stop
#aa3d25
#d76b53
#f6876e
#fe9d87
#ffc9bc
The generator opens with #aa3d25 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.