#BA4446

CSS

:root {
  --intrigue-red: #ba4446;
  --intrigue-red-rgb: 186 68 70;
  --intrigue-red-oklch: oklch(0.55 0.153 22.6);
}

.element {
  color: var(--intrigue-red);
  background-color: hsl(359 46% 50%);
  border-color: oklch(0.55 0.153 22.6);
}

Tailwind CSS v4

@theme {
  --color-intrigue-red: #ba4446;
  --color-intrigue-red-50: #ffe5e0;
  --color-intrigue-red-100: #ffd5cf;
  --color-intrigue-red-200: #ffbbb4;
  --color-intrigue-red-300: #fc9790;
  --color-intrigue-red-400: #eb7674;
  --color-intrigue-red-500: #d95355;
  --color-intrigue-red-600: #b74748;
  --color-intrigue-red-700: #93393a;
  --color-intrigue-red-800: #6e282b;
  --color-intrigue-red-900: #4d1b1d;
  --color-intrigue-red-950: #330a0d;
}

SCSS

$intrigue-red: #ba4446;
$intrigue-red-rgb: 186, 68, 70;
$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);
}