#975F31

CSS

:root {
  --chilli-con-carne: #975f31;
  --chilli-con-carne-rgb: 151 95 49;
  --chilli-con-carne-oklch: oklch(0.538 0.095 58.1);
}

.element {
  color: var(--chilli-con-carne);
  background-color: hsl(27 51% 39%);
  border-color: oklch(0.538 0.095 58.1);
}

Tailwind CSS v4

@theme {
  --color-chilli-con-carne: #975f31;
  --color-chilli-con-carne-50: #ffefda;
  --color-chilli-con-carne-100: #ffe1c9;
  --color-chilli-con-carne-200: #f3cbac;
  --color-chilli-con-carne-300: #dcac86;
  --color-chilli-con-carne-400: #c99065;
  --color-chilli-con-carne-500: #b57542;
  --color-chilli-con-carne-600: #996339;
  --color-chilli-con-carne-700: #7b4f2d;
  --color-chilli-con-carne-800: #5b3920;
  --color-chilli-con-carne-900: #402715;
  --color-chilli-con-carne-950: #291507;
}

SCSS

$chilli-con-carne: #975f31;
$chilli-con-carne-rgb: 151, 95, 49;
$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);
}