Nebula palette
Raisin Inn
From #004d69 ink through #0077a0, #3292bd, #56a1c5 to #72bde2 light, Raisin Inn 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.
cyannebulafive-stop
#004d69
#0077a0
#3292bd
#56a1c5
#72bde2
The generator opens with #004d69 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.