#D43B6F

CSS

:root {
  --dark-pink: #d43b6f;
  --dark-pink-rgb: 212 59 111;
  --dark-pink-oklch: oklch(0.592 0.192 4.8);
}

.element {
  color: var(--dark-pink);
  background-color: hsl(340 64% 53%);
  border-color: oklch(0.592 0.192 4.8);
}

Tailwind CSS v4

@theme {
  --color-dark-pink: #d43b6f;
  --color-dark-pink-50: #ffdfec;
  --color-dark-pink-100: #ffcedd;
  --color-dark-pink-200: #ffb1c6;
  --color-dark-pink-300: #ff8aa7;
  --color-dark-pink-400: #f76590;
  --color-dark-pink-500: #e53876;
  --color-dark-pink-600: #c13264;
  --color-dark-pink-700: #9c284f;
  --color-dark-pink-800: #741b3c;
  --color-dark-pink-900: #521229;
  --color-dark-pink-950: #360317;
}

SCSS

$dark-pink: #d43b6f;
$dark-pink-rgb: 212, 59, 111;
$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);
}