Earthyyellowdeep
HSL
70° · 38% · 21%
Crisp Mustard Opal
#434a21
Notes
Crisp Mustard Opal (#434A21) 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 (70°, 38%, 21%) 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
#434a21
RGB
rgb(67, 74, 33)
HSL
hsl(70, 38%, 21%)
Tints & Shades
Click any swatch to exploreHarmonies
Complementary
Split Complementary