Nebula palette
Sable Patio
From #00445e ink through #006d95, #2f88b1, #5196ba to #6db2d7 light, Sable Patio is a tetradic progression that holds together at any size. Use it for book covers that read at thumbnail size. The darkest and lightest stops clear AA as a text pair.
skynebulafive-stophigh-contrast
#00445e
#006d95
#2f88b1
#5196ba
#6db2d7
The generator opens with #00445e as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.