Cool Mustard Ink

#3c3907

Notes

Cool Mustard Ink (#3C3907) 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 (57°, 79%, 13%) places it in the highly saturated band at a dark lightness. Best used in small doses, like logos, CTAs, focus rings, or highlight text, where its saturation becomes a feature rather than noise. 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

#3c3907

RGB

rgb(60, 57, 7)

HSL

hsl(57, 79%, 13%)