#C98E57

CSS

:root {
  --butter-bronze: #c98e57;
  --butter-bronze-rgb: 201 142 87;
  --butter-bronze-oklch: oklch(0.693 0.101 62.9);
}

.element {
  color: var(--butter-bronze);
  background-color: hsl(29 51% 56%);
  border-color: oklch(0.693 0.101 62.9);
}

Tailwind CSS v4

@theme {
  --color-butter-bronze: #c98e57;
  --color-butter-bronze-50: #fff0d8;
  --color-butter-bronze-100: #ffe2c5;
  --color-butter-bronze-200: #f3cca7;
  --color-butter-bronze-300: #dcad80;
  --color-butter-bronze-400: #c9915d;
  --color-butter-bronze-500: #b57637;
  --color-butter-bronze-600: #996430;
  --color-butter-bronze-700: #7b5026;
  --color-butter-bronze-800: #5c391b;
  --color-butter-bronze-900: #402711;
  --color-butter-bronze-950: #291504;
}

SCSS

$butter-bronze: #c98e57;
$butter-bronze-rgb: 201, 142, 87;
$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);
}