Cool Mustard Opal

#38411b

Notes

Cool Mustard Opal (#38411B) 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 (74°, 41%, 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 indigo. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX

#38411b

RGB

rgb(56, 65, 27)

HSL

hsl(74, 41%, 18%)