Aurora palette
Hickory Foundry
Hickory Foundry runs #00474f through #00727d, #308d98, #529aa4 to #6fb7c0 in five measured steps, the tetradic structure keeping every neighbor honest. Reach for it for book covers that read at thumbnail size. The darkest and lightest stops clear AA as a text pair.
cyanaurorafive-stophigh-contrast
#00474f
#00727d
#308d98
#529aa4
#6fb7c0
The generator opens with #00474f as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.