Sumi palette
Willow Tide
Five colors with a clear job each — the ink grounds the set while the lightest stop opens it up, moving from #2a180f ink through #9b7b6c mid-tones to #f6e0dd light. Built for civic and transit interfaces legible at a glance in any weather.
ambersumiweb
#2a180f
#614836
#9b7b6c
#b89e8c
#f6e0dd
The generator opens with #2a180f as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.