Sumi palette
Seaside Estuary
From #8b1d08 ink through #b74e3a, #d66a54, #dd806d to #fc9c88 light, Seaside Estuary is a monochromatic progression that holds together at any size. Use it for bike-shop liveries that survive mud and sun. The darkest and lightest stops clear AA as a text pair.
redsumifive-stophigh-contrast
#8b1d08
#b74e3a
#d66a54
#dd806d
#fc9c88
The generator opens with #8b1d08 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.