#AC4F53

CSS

:root {
  --intrigue-red: #ac4f53;
  --intrigue-red-rgb: 172 79 83;
  --intrigue-red-oklch: oklch(0.546 0.122 19.4);
}

.element {
  color: var(--intrigue-red);
  background-color: hsl(357 37% 49%);
  border-color: oklch(0.546 0.122 19.4);
}

Tailwind CSS v4

@theme {
  --color-intrigue-red: #ac4f53;
  --color-intrigue-red-50: #ffe8e6;
  --color-intrigue-red-100: #ffd9d6;
  --color-intrigue-red-200: #ffc0bd;
  --color-intrigue-red-300: #f09e9c;
  --color-intrigue-red-400: #dd7f81;
  --color-intrigue-red-500: #ca6165;
  --color-intrigue-red-600: #ab5256;
  --color-intrigue-red-700: #894244;
  --color-intrigue-red-800: #662f33;
  --color-intrigue-red-900: #482022;
  --color-intrigue-red-950: #2f0f12;
}

SCSS

$intrigue-red: #ac4f53;
$intrigue-red-rgb: 172, 79, 83;
$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);
}