#8D6254

CSS

:root {
  --weathered-leather: #8d6254;
  --weathered-leather-rgb: 141 98 84;
  --weathered-leather-oklch: oklch(0.538 0.06 38.8);
}

.element {
  color: var(--weathered-leather);
  background-color: hsl(15 25% 44%);
  border-color: oklch(0.538 0.06 38.8);
}

Tailwind CSS v4

@theme {
  --color-weathered-leather: #8d6254;
  --color-weathered-leather-50: #fff0e8;
  --color-weathered-leather-100: #fbe2d9;
  --color-weathered-leather-200: #ecccc1;
  --color-weathered-leather-300: #d4aea0;
  --color-weathered-leather-400: #bf9384;
  --color-weathered-leather-500: #aa7969;
  --color-weathered-leather-600: #8f6659;
  --color-weathered-leather-700: #735247;
  --color-weathered-leather-800: #553b34;
  --color-weathered-leather-900: #3b2923;
  --color-weathered-leather-950: #251612;
}

SCSS

$weathered-leather: #8d6254;
$weathered-leather-rgb: 141, 98, 84;
$weathered-leather-light: mix(#fff, $weathered-leather, 20%);
$weathered-leather-dark: mix(#000, $weathered-leather, 20%);

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