Sumi palette
Pearl Bookshop
Pearl Bookshop runs #a63000 through #d75d38, #f77a54, #fd9172 to #ffbeab in five measured steps, the tetradic structure keeping every neighbor honest. Reach for it for national-park posters with layered mountain silhouettes. The darkest and lightest stops clear AA for large text.
redsumifive-stop
#a63000
#d75d38
#f77a54
#fd9172
#ffbeab
The generator opens with #a63000 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.