#C78F59

CSS

:root {
  --butter-bronze: #c78f59;
  --butter-bronze-rgb: 199 143 89;
  --butter-bronze-oklch: oklch(0.693 0.098 64);
}

.element {
  color: var(--butter-bronze);
  background-color: hsl(29 50% 56%);
  border-color: oklch(0.693 0.098 64);
}

Tailwind CSS v4

@theme {
  --color-butter-bronze: #c78f59;
  --color-butter-bronze-50: #fff0d8;
  --color-butter-bronze-100: #ffe2c6;
  --color-butter-bronze-200: #f2cda8;
  --color-butter-bronze-300: #daae82;
  --color-butter-bronze-400: #c7925f;
  --color-butter-bronze-500: #b3773a;
  --color-butter-bronze-600: #976532;
  --color-butter-bronze-700: #795128;
  --color-butter-bronze-800: #5a3a1c;
  --color-butter-bronze-900: #3f2812;
  --color-butter-bronze-950: #281605;
}

SCSS

$butter-bronze: #c78f59;
$butter-bronze-rgb: 199, 143, 89;
$butter-bronze-light: mix(#fff, $butter-bronze, 20%);
$butter-bronze-dark: mix(#000, $butter-bronze, 20%);

.element {
  color: $butter-bronze;
  box-shadow: 0 0 0 2px rgba($butter-bronze, 0.35);
}