Blue Hour palette
Raisin Square
From #005169 ink through #007c9e, #3398bb, #58a6c4 to #75c2e1 light, Raisin Square is a split-complementary progression that holds together at any size. Use it for newsletters where the header, links, and footers share one voice. The darkest and lightest stops clear AA for large text.
cyanbluehourfive-stop
#005169
#007c9e
#3398bb
#58a6c4
#75c2e1
The generator opens with #005169 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.