Sumi palette
Porcelain Square
Dark anchor, working middle, light release: #8d0035, #c53058, #e55072, #eb6d85, #ff93a4 form a tetradic sumi set with somewhere to stand at every lightness. Made for hotel key cards and lobby signage in one system. The darkest and lightest stops clear AA as a text pair.
pinksumifive-stophigh-contrast
#8d0035
#c53058
#e55072
#eb6d85
#ff93a4
The generator opens with #8d0035 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.