Out of the Blue

CSS

:root {
  --out-of-the-blue: #1199ee;
  --out-of-the-blue-rgb: 17 153 238;
  --out-of-the-blue-oklch: oklch(0.66 0.163 245.1);
}

.element {
  color: var(--out-of-the-blue);
  background-color: hsl(203 87% 50%);
  border-color: oklch(0.66 0.163 245.1);
}

Tailwind CSS v4

@theme {
  --color-out-of-the-blue: #1199ee;
  --color-out-of-the-blue-50: #d0faff;
  --color-out-of-the-blue-100: #bdeeff;
  --color-out-of-the-blue-200: #9bdbff;
  --color-out-of-the-blue-300: #6ebeff;
  --color-out-of-the-blue-400: #36a6f7;
  --color-out-of-the-blue-500: #008ce9;
  --color-out-of-the-blue-600: #0077c5;
  --color-out-of-the-blue-700: #005f9e;
  --color-out-of-the-blue-800: #004675;
  --color-out-of-the-blue-900: #003153;
  --color-out-of-the-blue-950: #001c38;
}

SCSS

$out-of-the-blue: #1199ee;
$out-of-the-blue-rgb: 17, 153, 238;
$out-of-the-blue-light: mix(#fff, $out-of-the-blue, 20%);
$out-of-the-blue-dark: mix(#000, $out-of-the-blue, 20%);

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