Nebula palette
Maple Fjord
Five nebula stops with room to breathe — #0063af grounds, #098df3 and #58abff do the talking, #7abbff softens, #b2d7ff lifts. The tetradic bones keep it coherent across book covers that read at thumbnail size. The darkest and lightest stops clear AA for large text.
skynebulafive-stop
#0063af
#098df3
#58abff
#7abbff
#b2d7ff
The generator opens with #0063af as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.