#A05B1C

CSS

:root {
  --chilli-con-carne: #a05b1c;
  --chilli-con-carne-rgb: 160 91 28;
  --chilli-con-carne-oklch: oklch(0.541 0.116 57.8);
}

.element {
  color: var(--chilli-con-carne);
  background-color: hsl(29 70% 37%);
  border-color: oklch(0.541 0.116 57.8);
}

Tailwind CSS v4

@theme {
  --color-chilli-con-carne: #a05b1c;
  --color-chilli-con-carne-50: #ffeed5;
  --color-chilli-con-carne-100: #ffe0c2;
  --color-chilli-con-carne-200: #fac9a3;
  --color-chilli-con-carne-300: #e4a97a;
  --color-chilli-con-carne-400: #d28c56;
  --color-chilli-con-carne-500: #be702b;
  --color-chilli-con-carne-600: #a15f26;
  --color-chilli-con-carne-700: #814c1f;
  --color-chilli-con-carne-800: #603615;
  --color-chilli-con-carne-900: #44250e;
  --color-chilli-con-carne-950: #2b1302;
}

SCSS

$chilli-con-carne: #a05b1c;
$chilli-con-carne-rgb: 160, 91, 28;
$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);
}