Nebula palette
Mossy Reef
Five stops tuned to sit together without fighting — #004b63 ink anchors the set, #71bbdb opens it up, and #007598, #3190b4, #559ebd cross the middle in a split-complementary arrangement. Mossy Reef suits book covers that read at thumbnail size. The darkest and lightest stops clear AA for large text.
cyannebulafive-stop
#004b63
#007598
#3190b4
#559ebd
#71bbdb
The generator opens with #004b63 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.