Nebula palette
Zephyr Estuary
From #004760 ink through #007196, #308cb2, #539abb to #6fb7d8 light, Zephyr Estuary is a analogous progression that holds together at any size. Use it for museum exhibition graphics with long sightlines. The darkest and lightest stops clear AA as a text pair.
cyannebulafive-stophigh-contrast
#004760
#007196
#308cb2
#539abb
#6fb7d8
The generator opens with #004760 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.