#C54771

CSS

:root {
  --dark-pink: #c54771;
  --dark-pink-rgb: 197 71 113;
  --dark-pink-oklch: oklch(0.581 0.164 3.1);
}

.element {
  color: var(--dark-pink);
  background-color: hsl(340 52% 53%);
  border-color: oklch(0.581 0.164 3.1);
}

Tailwind CSS v4

@theme {
  --color-dark-pink: #c54771;
  --color-dark-pink-50: #ffe2ef;
  --color-dark-pink-100: #ffd2e0;
  --color-dark-pink-200: #ffb7cb;
  --color-dark-pink-300: #fd92ac;
  --color-dark-pink-400: #eb7095;
  --color-dark-pink-500: #d94b7b;
  --color-dark-pink-600: #b74168;
  --color-dark-pink-700: #933453;
  --color-dark-pink-800: #6d243f;
  --color-dark-pink-900: #4d182b;
  --color-dark-pink-950: #330819;
}

SCSS

$dark-pink: #c54771;
$dark-pink-rgb: 197, 71, 113;
$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);
}