Blue Jacket

CSS

:root {
  --blue-jacket: #597193;
  --blue-jacket-rgb: 89 113 147;
  --blue-jacket-oklch: oklch(0.543 0.061 257.1);
}

.element {
  color: var(--blue-jacket);
  background-color: hsl(215 25% 46%);
  border-color: oklch(0.543 0.061 257.1);
}

Tailwind CSS v4

@theme {
  --color-blue-jacket: #597193;
  --color-blue-jacket-50: #ebf6ff;
  --color-blue-jacket-100: #dce9fd;
  --color-blue-jacket-200: #c5d5ef;
  --color-blue-jacket-300: #a5b9d7;
  --color-blue-jacket-400: #88a0c3;
  --color-blue-jacket-500: #6d88ae;
  --color-blue-jacket-600: #5c7393;
  --color-blue-jacket-700: #495c76;
  --color-blue-jacket-800: #344357;
  --color-blue-jacket-900: #242f3d;
  --color-blue-jacket-950: #121b26;
}

SCSS

$blue-jacket: #597193;
$blue-jacket-rgb: 89, 113, 147;
$blue-jacket-light: mix(#fff, $blue-jacket, 20%);
$blue-jacket-dark: mix(#000, $blue-jacket, 20%);

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