#9C5D18

CSS

:root {
  --chilli-con-carne: #9c5d18;
  --chilli-con-carne-rgb: 156 93 24;
  --chilli-con-carne-oklch: oklch(0.538 0.113 62.3);
}

.element {
  color: var(--chilli-con-carne);
  background-color: hsl(31 73% 35%);
  border-color: oklch(0.538 0.113 62.3);
}

Tailwind CSS v4

@theme {
  --color-chilli-con-carne: #9c5d18;
  --color-chilli-con-carne-50: #ffefd4;
  --color-chilli-con-carne-100: #ffe1c1;
  --color-chilli-con-carne-200: #f7cba2;
  --color-chilli-con-carne-300: #e0ab79;
  --color-chilli-con-carne-400: #ce8f54;
  --color-chilli-con-carne-500: #bb7328;
  --color-chilli-con-carne-600: #9e6224;
  --color-chilli-con-carne-700: #7e4e1d;
  --color-chilli-con-carne-800: #5e3814;
  --color-chilli-con-carne-900: #42260c;
  --color-chilli-con-carne-950: #2a1402;
}

SCSS

$chilli-con-carne: #9c5d18;
$chilli-con-carne-rgb: 156, 93, 24;
$chilli-con-carne-light: mix(#fff, $chilli-con-carne, 20%);
$chilli-con-carne-dark: mix(#000, $chilli-con-carne, 20%);

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