#B34A4E

CSS

:root {
  --intrigue-red: #b34a4e;
  --intrigue-red-rgb: 179 74 78;
  --intrigue-red-oklch: oklch(0.548 0.137 20.5);
}

.element {
  color: var(--intrigue-red);
  background-color: hsl(358 42% 50%);
  border-color: oklch(0.548 0.137 20.5);
}

Tailwind CSS v4

@theme {
  --color-intrigue-red: #b34a4e;
  --color-intrigue-red-50: #ffe7e3;
  --color-intrigue-red-100: #ffd7d3;
  --color-intrigue-red-200: #ffbeb9;
  --color-intrigue-red-300: #f69b97;
  --color-intrigue-red-400: #e47b7c;
  --color-intrigue-red-500: #d15a5e;
  --color-intrigue-red-600: #b14d50;
  --color-intrigue-red-700: #8e3e40;
  --color-intrigue-red-800: #6a2c30;
  --color-intrigue-red-900: #4a1d20;
  --color-intrigue-red-950: #310d10;
}

SCSS

$intrigue-red: #b34a4e;
$intrigue-red-rgb: 179, 74, 78;
$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);
}