Cool Mustard Ink

#3d4318

Notes

Cool Mustard Ink (#3D4318) is a deep yellow 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 (68°, 47%, 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 blue. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX

#3d4318

RGB

rgb(61, 67, 24)

HSL

hsl(68, 47%, 18%)