Rich Cobalt Marble

#302d58

Notes

Rich Cobalt Marble (#302D58) is a deep blue with an earthy character. It leans grounded and natural, the kind of color that plays well with wood, clay, linen, and warm neutrals. Its HSL profile (244°, 32%, 26%) 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 yellow. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX

#302d58

RGB

rgb(48, 45, 88)

HSL

hsl(244, 32%, 26%)