#C68851

CSS

:root {
  --butter-bronze: #c68851;
  --butter-bronze-rgb: 198 136 81;
  --butter-bronze-oklch: oklch(0.678 0.104 61.2);
}

.element {
  color: var(--butter-bronze);
  background-color: hsl(28 51% 55%);
  border-color: oklch(0.678 0.104 61.2);
}

Tailwind CSS v4

@theme {
  --color-butter-bronze: #c68851;
  --color-butter-bronze-50: #ffefd7;
  --color-butter-bronze-100: #ffe1c5;
  --color-butter-bronze-200: #f5cba7;
  --color-butter-bronze-300: #deac7f;
  --color-butter-bronze-400: #cb905c;
  --color-butter-bronze-500: #b77435;
  --color-butter-bronze-600: #9b632f;
  --color-butter-bronze-700: #7c4f25;
  --color-butter-bronze-800: #5d391a;
  --color-butter-bronze-900: #412711;
  --color-butter-bronze-950: #291504;
}

SCSS

$butter-bronze: #c68851;
$butter-bronze-rgb: 198, 136, 81;
$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);
}