Sumi palette
Brindle Brook
From #cb4e55 ink through #008ab6, #009473, #eb6a6f to #00b38c light, Brindle Brook is a tetradic progression that holds together at any size. Use it for wellness apps where the interface must feel calm, not clinical.
redsumifive-stop
#cb4e55
#008ab6
#009473
#eb6a6f
#00b38c
The generator opens with #cb4e55 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.