Blue Hour palette
Harbor Depot
From #6c64c1 ink through #3074c3, #007fa1, #4c90e1 to #009dc5 light, Harbor Depot is a monochromatic progression that holds together at any size. Use it for newsletters where the header, links, and footers share one voice.
bluebluehourfive-stop
#6c64c1
#3074c3
#007fa1
#4c90e1
#009dc5
The generator opens with #6c64c1 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.