#C0CED9

CSS

:root {
  --winter-scene: #c0ced9;
  --winter-scene-rgb: 192 206 217;
  --winter-scene-oklch: oklch(0.844 0.022 241.4);
}

.element {
  color: var(--winter-scene);
  background-color: hsl(206 25% 80%);
  border-color: oklch(0.844 0.022 241.4);
}

Tailwind CSS v4

@theme {
  --color-winter-scene: #c0ced9;
  --color-winter-scene-50: #f0f6fb;
  --color-winter-scene-100: #e2e9ef;
  --color-winter-scene-200: #cdd5dd;
  --color-winter-scene-300: #aeb9c2;
  --color-winter-scene-400: #94a0aa;
  --color-winter-scene-500: #7a8894;
  --color-winter-scene-600: #67737d;
  --color-winter-scene-700: #535c64;
  --color-winter-scene-800: #3c4449;
  --color-winter-scene-900: #292f33;
  --color-winter-scene-950: #171b1e;
}

SCSS

$winter-scene: #c0ced9;
$winter-scene-rgb: 192, 206, 217;
$winter-scene-light: mix(#fff, $winter-scene, 20%);
$winter-scene-dark: mix(#000, $winter-scene, 20%);

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