#EC66DC

CSS

:root {
  --death-of-a-star: #ec66dc;
  --death-of-a-star-rgb: 236 102 220;
  --death-of-a-star-oklch: oklch(0.715 0.213 332.4);
}

.element {
  color: var(--death-of-a-star);
  background-color: hsl(307 78% 66%);
  border-color: oklch(0.715 0.213 332.4);
}

Tailwind CSS v4

@theme {
  --color-death-of-a-star: #ec66dc;
  --color-death-of-a-star-50: #ffdfff;
  --color-death-of-a-star-100: #ffcdff;
  --color-death-of-a-star-200: #ffb1f9;
  --color-death-of-a-star-300: #f88ae3;
  --color-death-of-a-star-400: #e466d4;
  --color-death-of-a-star-500: #d13ac2;
  --color-death-of-a-star-600: #b033a4;
  --color-death-of-a-star-700: #8e2983;
  --color-death-of-a-star-800: #681d64;
  --color-death-of-a-star-900: #491346;
  --color-death-of-a-star-950: #30042e;
}

SCSS

$death-of-a-star: #ec66dc;
$death-of-a-star-rgb: 236, 102, 220;
$death-of-a-star-light: mix(#fff, $death-of-a-star, 20%);
$death-of-a-star-dark: mix(#000, $death-of-a-star, 20%);

.element {
  color: $death-of-a-star;
  box-shadow: 0 0 0 2px rgba($death-of-a-star, 0.35);
}