Blue Hour palette
Ashen Kiln
Ashen Kiln runs #005e81 through #0089ba, #37a5d7, #5eb4df to #7cd1fd 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.
cyanbluehourfive-stop
#005e81
#0089ba
#37a5d7
#5eb4df
#7cd1fd
The generator opens with #005e81 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.