#9F5C17

CSS

:root {
  --chilli-con-carne: #9f5c17;
  --chilli-con-carne-rgb: 159 92 23;
  --chilli-con-carne-oklch: oklch(0.541 0.117 60.2);
}

.element {
  color: var(--chilli-con-carne);
  background-color: hsl(30 75% 36%);
  border-color: oklch(0.541 0.117 60.2);
}

Tailwind CSS v4

@theme {
  --color-chilli-con-carne: #9f5c17;
  --color-chilli-con-carne-50: #ffefd4;
  --color-chilli-con-carne-100: #ffe0c1;
  --color-chilli-con-carne-200: #f9caa1;
  --color-chilli-con-carne-300: #e3aa78;
  --color-chilli-con-carne-400: #d18d53;
  --color-chilli-con-carne-500: #bd7126;
  --color-chilli-con-carne-600: #a06023;
  --color-chilli-con-carne-700: #804d1c;
  --color-chilli-con-carne-800: #603713;
  --color-chilli-con-carne-900: #43260c;
  --color-chilli-con-carne-950: #2b1401;
}

SCSS

$chilli-con-carne: #9f5c17;
$chilli-con-carne-rgb: 159, 92, 23;
$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);
}