#AB5050

CSS

:root {
  --intrigue-red: #ab5050;
  --intrigue-red-rgb: 171 80 80;
  --intrigue-red-oklch: oklch(0.545 0.12 21.8);
}

.element {
  color: var(--intrigue-red);
  background-color: hsl(0 36% 49%);
  border-color: oklch(0.545 0.12 21.8);
}

Tailwind CSS v4

@theme {
  --color-intrigue-red: #ab5050;
  --color-intrigue-red-50: #ffe9e5;
  --color-intrigue-red-100: #ffd9d5;
  --color-intrigue-red-200: #ffc1bc;
  --color-intrigue-red-300: #ef9f9a;
  --color-intrigue-red-400: #dc817e;
  --color-intrigue-red-500: #c96262;
  --color-intrigue-red-600: #aa5453;
  --color-intrigue-red-700: #894342;
  --color-intrigue-red-800: #662f31;
  --color-intrigue-red-900: #472021;
  --color-intrigue-red-950: #2e0f11;
}

SCSS

$intrigue-red: #ab5050;
$intrigue-red-rgb: 171, 80, 80;
$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);
}