#AC4F55

CSS

:root {
  --intrigue-red: #ac4f55;
  --intrigue-red-rgb: 172 79 85;
  --intrigue-red-oklch: oklch(0.546 0.122 18);
}

.element {
  color: var(--intrigue-red);
  background-color: hsl(356 37% 49%);
  border-color: oklch(0.546 0.122 18);
}

Tailwind CSS v4

@theme {
  --color-intrigue-red: #ac4f55;
  --color-intrigue-red-50: #ffe8e7;
  --color-intrigue-red-100: #ffd8d7;
  --color-intrigue-red-200: #ffc0bf;
  --color-intrigue-red-300: #f09e9d;
  --color-intrigue-red-400: #dd7f83;
  --color-intrigue-red-500: #ca6167;
  --color-intrigue-red-600: #ab5257;
  --color-intrigue-red-700: #894246;
  --color-intrigue-red-800: #662f34;
  --color-intrigue-red-900: #482023;
  --color-intrigue-red-950: #2e0f12;
}

SCSS

$intrigue-red: #ac4f55;
$intrigue-red-rgb: 172, 79, 85;
$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);
}