#9B5D28

CSS

:root {
  --chilli-con-carne: #9b5d28;
  --chilli-con-carne-rgb: 155 93 40;
  --chilli-con-carne-oklch: oklch(0.538 0.105 58);
}

.element {
  color: var(--chilli-con-carne);
  background-color: hsl(28 59% 38%);
  border-color: oklch(0.538 0.105 58);
}

Tailwind CSS v4

@theme {
  --color-chilli-con-carne: #9b5d28;
  --color-chilli-con-carne-50: #ffefd8;
  --color-chilli-con-carne-100: #ffe0c5;
  --color-chilli-con-carne-200: #f7caa7;
  --color-chilli-con-carne-300: #e0ab80;
  --color-chilli-con-carne-400: #cd8e5e;
  --color-chilli-con-carne-500: #b97338;
  --color-chilli-con-carne-600: #9d6131;
  --color-chilli-con-carne-700: #7e4e27;
  --color-chilli-con-carne-800: #5e381b;
  --color-chilli-con-carne-900: #422612;
  --color-chilli-con-carne-950: #2a1404;
}

SCSS

$chilli-con-carne: #9b5d28;
$chilli-con-carne-rgb: 155, 93, 40;
$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);
}