#9B5E24

CSS

:root {
  --chilli-con-carne: #9b5e24;
  --chilli-con-carne-rgb: 155 94 36;
  --chilli-con-carne-oklch: oklch(0.54 0.107 60.3);
}

.element {
  color: var(--chilli-con-carne);
  background-color: hsl(29 62% 37%);
  border-color: oklch(0.54 0.107 60.3);
}

Tailwind CSS v4

@theme {
  --color-chilli-con-carne: #9b5e24;
  --color-chilli-con-carne-50: #ffefd7;
  --color-chilli-con-carne-100: #ffe1c4;
  --color-chilli-con-carne-200: #f6cba6;
  --color-chilli-con-carne-300: #dfac7e;
  --color-chilli-con-carne-400: #cd8f5b;
  --color-chilli-con-carne-500: #b97333;
  --color-chilli-con-carne-600: #9c622d;
  --color-chilli-con-carne-700: #7d4e24;
  --color-chilli-con-carne-800: #5e3819;
  --color-chilli-con-carne-900: #422710;
  --color-chilli-con-carne-950: #2a1503;
}

SCSS

$chilli-con-carne: #9b5e24;
$chilli-con-carne-rgb: 155, 94, 36;
$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);
}