#E8F3FD

CSS

:root {
  --first-snow: #e8f3fd;
  --first-snow-rgb: 232 243 253;
  --first-snow-oklch: oklch(0.959 0.018 245.4);
}

.element {
  color: var(--first-snow);
  background-color: hsl(209 84% 95%);
  border-color: oklch(0.959 0.018 245.4);
}

Tailwind CSS v4

@theme {
  --color-first-snow: #e8f3fd;
  --color-first-snow-50: #f1f6fa;
  --color-first-snow-100: #e3e8ee;
  --color-first-snow-200: #ced5dc;
  --color-first-snow-300: #b0b8c0;
  --color-first-snow-400: #96a0a9;
  --color-first-snow-500: #7d8892;
  --color-first-snow-600: #6a737b;
  --color-first-snow-700: #545c63;
  --color-first-snow-800: #3d4348;
  --color-first-snow-900: #2a2e32;
  --color-first-snow-950: #181b1e;
}

SCSS

$first-snow: #e8f3fd;
$first-snow-rgb: 232, 243, 253;
$first-snow-light: mix(#fff, $first-snow, 20%);
$first-snow-dark: mix(#000, $first-snow, 20%);

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