Antilles Blue

CSS

:root {
  --antilles-blue: #3b5e8d;
  --antilles-blue-rgb: 59 94 141;
  --antilles-blue-oklch: oklch(0.477 0.087 256.2);
}

.element {
  color: var(--antilles-blue);
  background-color: hsl(214 41% 39%);
  border-color: oklch(0.477 0.087 256.2);
}

Tailwind CSS v4

@theme {
  --color-antilles-blue: #3b5e8d;
  --color-antilles-blue-50: #e6f7ff;
  --color-antilles-blue-100: #d7e9ff;
  --color-antilles-blue-200: #bed6fa;
  --color-antilles-blue-300: #9cb9e4;
  --color-antilles-blue-400: #7da1d1;
  --color-antilles-blue-500: #5f88bf;
  --color-antilles-blue-600: #5173a1;
  --color-antilles-blue-700: #415c81;
  --color-antilles-blue-800: #2d4460;
  --color-antilles-blue-900: #1e2f43;
  --color-antilles-blue-950: #0e1b2b;
}

SCSS

$antilles-blue: #3b5e8d;
$antilles-blue-rgb: 59, 94, 141;
$antilles-blue-light: mix(#fff, $antilles-blue, 20%);
$antilles-blue-dark: mix(#000, $antilles-blue, 20%);

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