Rich Midnight Marble

#0f1f4d

Notes

Rich Midnight Marble (#0F1F4D) is a deep blue with a jewel character. It carries the deep, saturated richness of a gemstone. Authoritative and slightly formal, it works well for type and heavy UI elements. Its HSL profile (225°, 67%, 18%) 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 amber. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX

#0f1f4d

RGB

rgb(15, 31, 77)

HSL

hsl(225, 67%, 18%)