#AF4E49

CSS

:root {
  --intrigue-red: #af4e49;
  --intrigue-red-rgb: 175 78 73;
  --intrigue-red-oklch: oklch(0.547 0.128 25.2);
}

.element {
  color: var(--intrigue-red);
  background-color: hsl(3 41% 49%);
  border-color: oklch(0.547 0.128 25.2);
}

Tailwind CSS v4

@theme {
  --color-intrigue-red: #af4e49;
  --color-intrigue-red-50: #ffe8e1;
  --color-intrigue-red-100: #ffd8d1;
  --color-intrigue-red-200: #ffc0b7;
  --color-intrigue-red-300: #f29e94;
  --color-intrigue-red-400: #e07f77;
  --color-intrigue-red-500: #cd5f59;
  --color-intrigue-red-600: #ad514c;
  --color-intrigue-red-700: #8b413c;
  --color-intrigue-red-800: #682e2d;
  --color-intrigue-red-900: #491f1e;
  --color-intrigue-red-950: #2f0e0e;
}

SCSS

$intrigue-red: #af4e49;
$intrigue-red-rgb: 175, 78, 73;
$intrigue-red-light: mix(#fff, $intrigue-red, 20%);
$intrigue-red-dark: mix(#000, $intrigue-red, 20%);

.element {
  color: $intrigue-red;
  box-shadow: 0 0 0 2px rgba($intrigue-red, 0.35);
}