Cool Mustard Chiffon

#303b0d

Notes

Cool Mustard Chiffon (#303B0D) is a deep yellow 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 (74°, 64%, 14%) 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

#303b0d

RGB

rgb(48, 59, 13)

HSL

hsl(74, 64%, 14%)