Nebula palette
Straw Canyon
Five nebula stops with room to breathe — #005f5e grounds, #008c8a and #37a8a6 do the talking, #5eb5b3 softens, #7bd2cf lifts. The split-complementary bones keep it coherent across book covers that read at thumbnail size. The darkest and lightest stops clear AA for large text.
cyannebulafive-stop
#005f5e
#008c8a
#37a8a6
#5eb5b3
#7bd2cf
The generator opens with #005f5e as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.