Dusky Indigo Marble

#391f6f

Notes

Dusky Indigo Marble (#391F6F) is a deep indigo with a cool character. It leans cool, sitting on the blue, green, and violet side of the wheel. Quiet and dependable, a fit for product UI and data visualization. Its HSL profile (260°, 56%, 28%) places it in the balanced band at a dark lightness. It works well as a headline, icon, or deep background in an otherwise light layout, pairing cleanly with cream, bone, and warm neutrals. For a confident two-color system, pair it with its complementary lime. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX

#391f6f

RGB

rgb(57, 31, 111)

HSL

hsl(260, 56%, 28%)