Castle in the Sky

CSS

:root {
  --castle-in-the-sky: #d1eaed;
  --castle-in-the-sky-rgb: 209 234 237;
  --castle-in-the-sky-oklch: oklch(0.92 0.027 205.4);
}

.element {
  color: var(--castle-in-the-sky);
  background-color: hsl(186 44% 87%);
  border-color: oklch(0.92 0.027 205.4);
}

Tailwind CSS v4

@theme {
  --color-castle-in-the-sky: #d1eaed;
  --color-castle-in-the-sky-50: #edf7f9;
  --color-castle-in-the-sky-100: #deebec;
  --color-castle-in-the-sky-200: #c8d8da;
  --color-castle-in-the-sky-300: #a8bcbe;
  --color-castle-in-the-sky-400: #8da3a6;
  --color-castle-in-the-sky-500: #728c8f;
  --color-castle-in-the-sky-600: #617679;
  --color-castle-in-the-sky-700: #4d5e61;
  --color-castle-in-the-sky-800: #384546;
  --color-castle-in-the-sky-900: #263031;
  --color-castle-in-the-sky-950: #151c1d;
}

SCSS

$castle-in-the-sky: #d1eaed;
$castle-in-the-sky-rgb: 209, 234, 237;
$castle-in-the-sky-light: mix(#fff, $castle-in-the-sky, 20%);
$castle-in-the-sky-dark: mix(#000, $castle-in-the-sky, 20%);

.element {
  color: $castle-in-the-sky;
  box-shadow: 0 0 0 2px rgba($castle-in-the-sky, 0.35);
}