#956B54

CSS

:root {
  --leather: #956b54;
  --leather-rgb: 149 107 84;
  --leather-oklch: oklch(0.565 0.064 49.7);
}

.element {
  color: var(--leather);
  background-color: hsl(21 28% 46%);
  border-color: oklch(0.565 0.064 49.7);
}

Tailwind CSS v4

@theme {
  --color-leather: #956b54;
  --color-leather-50: #fff1e5;
  --color-leather-100: #fae3d5;
  --color-leather-200: #ebcdbc;
  --color-leather-300: #d3af9a;
  --color-leather-400: #be947d;
  --color-leather-500: #a97a60;
  --color-leather-600: #8f6752;
  --color-leather-700: #735341;
  --color-leather-800: #553c2f;
  --color-leather-900: #3b2920;
  --color-leather-950: #25170f;
}

SCSS

$leather: #956b54;
$leather-rgb: 149, 107, 84;
$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);
}