#966B56

CSS

:root {
  --leather: #966b56;
  --leather-rgb: 150 107 86;
  --leather-oklch: oklch(0.567 0.064 47);
}

.element {
  color: var(--leather);
  background-color: hsl(20 27% 46%);
  border-color: oklch(0.567 0.064 47);
}

Tailwind CSS v4

@theme {
  --color-leather: #966b56;
  --color-leather-50: #fff0e6;
  --color-leather-100: #fbe2d6;
  --color-leather-200: #eccdbd;
  --color-leather-300: #d3ae9b;
  --color-leather-400: #bf937f;
  --color-leather-500: #aa7962;
  --color-leather-600: #8f6753;
  --color-leather-700: #735242;
  --color-leather-800: #553b30;
  --color-leather-900: #3c2920;
  --color-leather-950: #251710;
}

SCSS

$leather: #966b56;
$leather-rgb: 150, 107, 86;
$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);
}