#9B5E22

CSS

:root {
  --chilli-con-carne: #9b5e22;
  --chilli-con-carne-rgb: 155 94 34;
  --chilli-con-carne-oklch: oklch(0.54 0.108 61);
}

.element {
  color: var(--chilli-con-carne);
  background-color: hsl(30 64% 37%);
  border-color: oklch(0.54 0.108 61);
}

Tailwind CSS v4

@theme {
  --color-chilli-con-carne: #9b5e22;
  --color-chilli-con-carne-50: #ffefd6;
  --color-chilli-con-carne-100: #ffe1c4;
  --color-chilli-con-carne-200: #f6cba5;
  --color-chilli-con-carne-300: #dfac7d;
  --color-chilli-con-carne-400: #cd8f59;
  --color-chilli-con-carne-500: #b97431;
  --color-chilli-con-carne-600: #9c622b;
  --color-chilli-con-carne-700: #7d4e22;
  --color-chilli-con-carne-800: #5e3818;
  --color-chilli-con-carne-900: #42270f;
  --color-chilli-con-carne-950: #2a1503;
}

SCSS

$chilli-con-carne: #9b5e22;
$chilli-con-carne-rgb: 155, 94, 34;
$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);
}