#A8E1EA

CSS

:root {
  --blizzard-blue: #a8e1ea;
  --blizzard-blue-rgb: 168 225 234;
  --blizzard-blue-oklch: oklch(0.874 0.059 208.2);
}

.element {
  color: var(--blizzard-blue);
  background-color: hsl(188 61% 79%);
  border-color: oklch(0.874 0.059 208.2);
}

Tailwind CSS v4

@theme {
  --color-blizzard-blue: #a8e1ea;
  --color-blizzard-blue-50: #e3faff;
  --color-blizzard-blue-100: #d2eef3;
  --color-blizzard-blue-200: #b8dce2;
  --color-blizzard-blue-300: #95c0c8;
  --color-blizzard-blue-400: #74a9b1;
  --color-blizzard-blue-500: #54919b;
  --color-blizzard-blue-600: #487b83;
  --color-blizzard-blue-700: #396269;
  --color-blizzard-blue-800: #28484c;
  --color-blizzard-blue-900: #1b3235;
  --color-blizzard-blue-950: #0b1e20;
}

SCSS

$blizzard-blue: #a8e1ea;
$blizzard-blue-rgb: 168, 225, 234;
$blizzard-blue-light: mix(#fff, $blizzard-blue, 20%);
$blizzard-blue-dark: mix(#000, $blizzard-blue, 20%);

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