Nebula palette
Topaz Canyon
Dark anchor, working middle, light release: #174aa4, #4375ce, #5d91ec, #75a2f0, #9abfff form a split-complementary nebula set with somewhere to stand at every lightness. Made for book covers that read at thumbnail size. The darkest and lightest stops clear AA for large text.
skynebulafive-stop
#174aa4
#4375ce
#5d91ec
#75a2f0
#9abfff
The generator opens with #174aa4 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.