#F063DA

CSS

:root {
  --death-of-a-star: #f063da;
  --death-of-a-star-rgb: 240 99 218;
  --death-of-a-star-oklch: oklch(0.716 0.218 334.1);
}

.element {
  color: var(--death-of-a-star);
  background-color: hsl(309 82% 66%);
  border-color: oklch(0.716 0.218 334.1);
}

Tailwind CSS v4

@theme {
  --color-death-of-a-star: #f063da;
  --color-death-of-a-star-50: #ffdeff;
  --color-death-of-a-star-100: #ffccff;
  --color-death-of-a-star-200: #ffaff7;
  --color-death-of-a-star-300: #fb88e1;
  --color-death-of-a-star-400: #e763d2;
  --color-death-of-a-star-500: #d534bf;
  --color-death-of-a-star-600: #b42fa2;
  --color-death-of-a-star-700: #902682;
  --color-death-of-a-star-800: #6a1a63;
  --color-death-of-a-star-900: #4b1145;
  --color-death-of-a-star-950: #31032d;
}

SCSS

$death-of-a-star: #f063da;
$death-of-a-star-rgb: 240, 99, 218;
$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);
}