Winter Sky

CSS

:root {
  --winter-sky: #a9c0cb;
  --winter-sky-rgb: 169 192 203;
  --winter-sky-oklch: oklch(0.794 0.03 228.2);
}

.element {
  color: var(--winter-sky);
  background-color: hsl(199 25% 73%);
  border-color: oklch(0.794 0.03 228.2);
}

Tailwind CSS v4

@theme {
  --color-winter-sky: #a9c0cb;
  --color-winter-sky-50: #edf7fc;
  --color-winter-sky-100: #deeaf0;
  --color-winter-sky-200: #c8d7df;
  --color-winter-sky-300: #a9bbc4;
  --color-winter-sky-400: #8da2ac;
  --color-winter-sky-500: #728a96;
  --color-winter-sky-600: #61757f;
  --color-winter-sky-700: #4d5e65;
  --color-winter-sky-800: #38454a;
  --color-winter-sky-900: #262f34;
  --color-winter-sky-950: #141c1f;
}

SCSS

$winter-sky: #a9c0cb;
$winter-sky-rgb: 169, 192, 203;
$winter-sky-light: mix(#fff, $winter-sky, 20%);
$winter-sky-dark: mix(#000, $winter-sky, 20%);

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