#9F5B23

CSS

:root {
  --chilli-con-carne: #9f5b23;
  --chilli-con-carne-rgb: 159 91 35;
  --chilli-con-carne-oklch: oklch(0.54 0.112 56.2);
}

.element {
  color: var(--chilli-con-carne);
  background-color: hsl(27 64% 38%);
  border-color: oklch(0.54 0.112 56.2);
}

Tailwind CSS v4

@theme {
  --color-chilli-con-carne: #9f5b23;
  --color-chilli-con-carne-50: #ffeed6;
  --color-chilli-con-carne-100: #ffdfc4;
  --color-chilli-con-carne-200: #fac9a5;
  --color-chilli-con-carne-300: #e3a97d;
  --color-chilli-con-carne-400: #d18c5a;
  --color-chilli-con-carne-500: #be7032;
  --color-chilli-con-carne-600: #a05f2c;
  --color-chilli-con-carne-700: #814c23;
  --color-chilli-con-carne-800: #603719;
  --color-chilli-con-carne-900: #432510;
  --color-chilli-con-carne-950: #2b1403;
}

SCSS

$chilli-con-carne: #9f5b23;
$chilli-con-carne-rgb: 159, 91, 35;
$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);
}