Frost palette
Oyster Delta
Oyster Delta runs #004851 through #007380, #308e9b, #539ba7 to #6fb8c3 in five measured steps, the tetradic structure keeping every neighbor honest. Reach for it for hotel key cards and lobby signage in one system. The darkest and lightest stops clear AA as a text pair.
cyanfrostfive-stophigh-contrast
#004851
#007380
#308e9b
#539ba7
#6fb8c3
The generator opens with #004851 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.