Nebula palette
Peaty Reef
Peaty Reef runs #00638a through #008ec4, #38aae2, #61b9e9 to #8bd5ff 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 for large text.
cyannebulafive-stop
#00638a
#008ec4
#38aae2
#61b9e9
#8bd5ff
The generator opens with #00638a as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.