#08819C

CSS

:root {
  --ahoy-blue: #08819c;
  --ahoy-blue-rgb: 8 129 156;
  --ahoy-blue-oklch: oklch(0.558 0.1 219.7);
}

.element {
  color: var(--ahoy-blue);
  background-color: hsl(191 90% 32%);
  border-color: oklch(0.558 0.1 219.7);
}

Tailwind CSS v4

@theme {
  --color-ahoy-blue: #08819c;
  --color-ahoy-blue-50: #d7fcff;
  --color-ahoy-blue-100: #c4f0ff;
  --color-ahoy-blue-200: #a5dff3;
  --color-ahoy-blue-300: #7cc3dc;
  --color-ahoy-blue-400: #50acc7;
  --color-ahoy-blue-500: #1095b3;
  --color-ahoy-blue-600: #157e97;
  --color-ahoy-blue-700: #12657a;
  --color-ahoy-blue-800: #084a59;
  --color-ahoy-blue-900: #06343e;
  --color-ahoy-blue-950: #001f28;
}

SCSS

$ahoy-blue: #08819c;
$ahoy-blue-rgb: 8, 129, 156;
$ahoy-blue-light: mix(#fff, $ahoy-blue, 20%);
$ahoy-blue-dark: mix(#000, $ahoy-blue, 20%);

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