Rich Mustard Glass

#3f3a08

Notes

Rich Mustard Glass (#3F3A08) 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 (55°, 77%, 14%) 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

#3f3a08

RGB

rgb(63, 58, 8)

HSL

hsl(55, 77%, 14%)