Jewel palette
Harbor Reef
From #223888 ink through #4762b1, #607dcf, #738ed4 to #8eaaf2 light, Harbor Reef is a triadic progression that holds together at any size. Use it for hotel key cards and lobby signage in one system. The darkest and lightest stops clear AA as a text pair.
skyjewelfive-stophigh-contrast
#223888
#4762b1
#607dcf
#738ed4
#8eaaf2
The generator opens with #223888 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.