#995F28

CSS

:root {
  --chilli-con-carne: #995f28;
  --chilli-con-carne-rgb: 153 95 40;
  --chilli-con-carne-oklch: oklch(0.54 0.103 60.9);
}

.element {
  color: var(--chilli-con-carne);
  background-color: hsl(29 59% 38%);
  border-color: oklch(0.54 0.103 60.9);
}

Tailwind CSS v4

@theme {
  --color-chilli-con-carne: #995f28;
  --color-chilli-con-carne-50: #fff0d8;
  --color-chilli-con-carne-100: #ffe1c5;
  --color-chilli-con-carne-200: #f5cba7;
  --color-chilli-con-carne-300: #ddac80;
  --color-chilli-con-carne-400: #cb905e;
  --color-chilli-con-carne-500: #b77538;
  --color-chilli-con-carne-600: #9a6330;
  --color-chilli-con-carne-700: #7c4f26;
  --color-chilli-con-carne-800: #5c391b;
  --color-chilli-con-carne-900: #412711;
  --color-chilli-con-carne-950: #291504;
}

SCSS

$chilli-con-carne: #995f28;
$chilli-con-carne-rgb: 153, 95, 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);
}