#F5EDE6

CSS

:root {
  --refer-to-the-stars: #f5ede6;
  --refer-to-the-stars-rgb: 245 237 230;
  --refer-to-the-stars-oklch: oklch(0.95 0.013 63.9);
}

.element {
  color: var(--refer-to-the-stars);
  background-color: hsl(28 43% 93%);
  border-color: oklch(0.95 0.013 63.9);
}

Tailwind CSS v4

@theme {
  --color-refer-to-the-stars: #f5ede6;
  --color-refer-to-the-stars-50: #f8f4f1;
  --color-refer-to-the-stars-100: #ebe7e3;
  --color-refer-to-the-stars-200: #d8d3cf;
  --color-refer-to-the-stars-300: #bcb6b1;
  --color-refer-to-the-stars-400: #a49d97;
  --color-refer-to-the-stars-500: #8c857e;
  --color-refer-to-the-stars-600: #77706a;
  --color-refer-to-the-stars-700: #5f5a55;
  --color-refer-to-the-stars-800: #46413e;
  --color-refer-to-the-stars-900: #302d2b;
  --color-refer-to-the-stars-950: #1c1a18;
}

SCSS

$refer-to-the-stars: #f5ede6;
$refer-to-the-stars-rgb: 245, 237, 230;
$refer-to-the-stars-light: mix(#fff, $refer-to-the-stars, 20%);
$refer-to-the-stars-dark: mix(#000, $refer-to-the-stars, 20%);

.element {
  color: $refer-to-the-stars;
  box-shadow: 0 0 0 2px rgba($refer-to-the-stars, 0.35);
}