#9A5E2A

CSS

:root {
  --chilli-con-carne: #9a5e2a;
  --chilli-con-carne-rgb: 154 94 42;
  --chilli-con-carne-oklch: oklch(0.539 0.103 58.7);
}

.element {
  color: var(--chilli-con-carne);
  background-color: hsl(28 57% 38%);
  border-color: oklch(0.539 0.103 58.7);
}

Tailwind CSS v4

@theme {
  --color-chilli-con-carne: #9a5e2a;
  --color-chilli-con-carne-50: #ffefd8;
  --color-chilli-con-carne-100: #ffe1c6;
  --color-chilli-con-carne-200: #f6cba8;
  --color-chilli-con-carne-300: #dfac81;
  --color-chilli-con-carne-400: #cc8f5f;
  --color-chilli-con-carne-500: #b8743a;
  --color-chilli-con-carne-600: #9b6232;
  --color-chilli-con-carne-700: #7d4e28;
  --color-chilli-con-carne-800: #5d381c;
  --color-chilli-con-carne-900: #412712;
  --color-chilli-con-carne-950: #2a1505;
}

SCSS

$chilli-con-carne: #9a5e2a;
$chilli-con-carne-rgb: 154, 94, 42;
$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);
}