Blue Hour palette
Rainy Deck
From #005e7f ink through #0089b7, #37a5d4, #5eb4dc to #7cd1fa light, Rainy Deck is a analogous 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 for large text.
cyanbluehourfive-stop
#005e7f
#0089b7
#37a5d4
#5eb4dc
#7cd1fa
The generator opens with #005e7f as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.