#956E53

CSS

:root {
  --leather: #956e53;
  --leather-rgb: 149 110 83;
  --leather-oklch: oklch(0.571 0.063 55.8);
}

.element {
  color: var(--leather);
  background-color: hsl(25 28% 45%);
  border-color: oklch(0.571 0.063 55.8);
}

Tailwind CSS v4

@theme {
  --color-leather: #956e53;
  --color-leather-50: #fff1e4;
  --color-leather-100: #f9e3d4;
  --color-leather-200: #eaceba;
  --color-leather-300: #d1b098;
  --color-leather-400: #bc957b;
  --color-leather-500: #a77b5d;
  --color-leather-600: #8d694f;
  --color-leather-700: #71543f;
  --color-leather-800: #543c2d;
  --color-leather-900: #3b2a1f;
  --color-leather-950: #25170e;
}

SCSS

$leather: #956e53;
$leather-rgb: 149, 110, 83;
$leather-light: mix(#fff, $leather, 20%);
$leather-dark: mix(#000, $leather, 20%);

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