Santorini Blue

CSS

:root {
  --santorini-blue: #416d83;
  --santorini-blue-rgb: 65 109 131;
  --santorini-blue-oklch: oklch(0.512 0.06 231.3);
}

.element {
  color: var(--santorini-blue);
  background-color: hsl(200 34% 38%);
  border-color: oklch(0.512 0.06 231.3);
}

Tailwind CSS v4

@theme {
  --color-santorini-blue: #416d83;
  --color-santorini-blue-50: #e5f9ff;
  --color-santorini-blue-100: #d5ecf9;
  --color-santorini-blue-200: #bcd9ea;
  --color-santorini-blue-300: #9abdd2;
  --color-santorini-blue-400: #7aa5bc;
  --color-santorini-blue-500: #5c8ea7;
  --color-santorini-blue-600: #4e788d;
  --color-santorini-blue-700: #3e6071;
  --color-santorini-blue-800: #2c4653;
  --color-santorini-blue-900: #1e313a;
  --color-santorini-blue-950: #0d1d24;
}

SCSS

$santorini-blue: #416d83;
$santorini-blue-rgb: 65, 109, 131;
$santorini-blue-light: mix(#fff, $santorini-blue, 20%);
$santorini-blue-dark: mix(#000, $santorini-blue, 20%);

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