#C74669

CSS

:root {
  --dark-pink: #c74669;
  --dark-pink-rgb: 199 70 105;
  --dark-pink-oklch: oklch(0.581 0.166 7.3);
}

.element {
  color: var(--dark-pink);
  background-color: hsl(344 54% 53%);
  border-color: oklch(0.581 0.166 7.3);
}

Tailwind CSS v4

@theme {
  --color-dark-pink: #c74669;
  --color-dark-pink-50: #ffe2eb;
  --color-dark-pink-100: #ffd2dc;
  --color-dark-pink-200: #ffb7c5;
  --color-dark-pink-300: #ff92a5;
  --color-dark-pink-400: #ed6f8d;
  --color-dark-pink-500: #db4a72;
  --color-dark-pink-600: #b94061;
  --color-dark-pink-700: #95334d;
  --color-dark-pink-800: #6f243a;
  --color-dark-pink-900: #4e1828;
  --color-dark-pink-950: #330816;
}

SCSS

$dark-pink: #c74669;
$dark-pink-rgb: 199, 70, 105;
$dark-pink-light: mix(#fff, $dark-pink, 20%);
$dark-pink-dark: mix(#000, $dark-pink, 20%);

.element {
  color: $dark-pink;
  box-shadow: 0 0 0 2px rgba($dark-pink, 0.35);
}