#AF632F

CSS

:root {
  --polished-copper: #af632f;
  --polished-copper-rgb: 175 99 47;
  --polished-copper-oklch: oklch(0.577 0.118 52.3);
}

.element {
  color: var(--polished-copper);
  background-color: hsl(24 58% 44%);
  border-color: oklch(0.577 0.118 52.3);
}

Tailwind CSS v4

@theme {
  --color-polished-copper: #af632f;
  --color-polished-copper-50: #ffedd6;
  --color-polished-copper-100: #ffdec3;
  --color-polished-copper-200: #fdc7a5;
  --color-polished-copper-300: #e7a77d;
  --color-polished-copper-400: #d58a5a;
  --color-polished-copper-500: #c26d32;
  --color-polished-copper-600: #a45d2c;
  --color-polished-copper-700: #844a23;
  --color-polished-copper-800: #623519;
  --color-polished-copper-900: #452410;
  --color-polished-copper-950: #2c1203;
}

SCSS

$polished-copper: #af632f;
$polished-copper-rgb: 175, 99, 47;
$polished-copper-light: mix(#fff, $polished-copper, 20%);
$polished-copper-dark: mix(#000, $polished-copper, 20%);

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