#A05B1B

CSS

:root {
  --chilli-con-carne: #a05b1b;
  --chilli-con-carne-rgb: 160 91 27;
  --chilli-con-carne-oklch: oklch(0.54 0.117 58);
}

.element {
  color: var(--chilli-con-carne);
  background-color: hsl(29 71% 37%);
  border-color: oklch(0.54 0.117 58);
}

Tailwind CSS v4

@theme {
  --color-chilli-con-carne: #a05b1b;
  --color-chilli-con-carne-50: #ffeed4;
  --color-chilli-con-carne-100: #ffe0c1;
  --color-chilli-con-carne-200: #fac9a2;
  --color-chilli-con-carne-300: #e4a97a;
  --color-chilli-con-carne-400: #d28c55;
  --color-chilli-con-carne-500: #be702a;
  --color-chilli-con-carne-600: #a15f26;
  --color-chilli-con-carne-700: #814c1e;
  --color-chilli-con-carne-800: #603615;
  --color-chilli-con-carne-900: #44250d;
  --color-chilli-con-carne-950: #2c1302;
}

SCSS

$chilli-con-carne: #a05b1b;
$chilli-con-carne-rgb: 160, 91, 27;
$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);
}