Galenite Blue

CSS

:root {
  --galenite-blue: #374b52;
  --galenite-blue-rgb: 55 75 82;
  --galenite-blue-oklch: oklch(0.399 0.028 221.4);
}

.element {
  color: var(--galenite-blue);
  background-color: hsl(196 20% 27%);
  border-color: oklch(0.399 0.028 221.4);
}

Tailwind CSS v4

@theme {
  --color-galenite-blue: #374b52;
  --color-galenite-blue-50: #edf7fb;
  --color-galenite-blue-100: #dfeaef;
  --color-galenite-blue-200: #c8d7dd;
  --color-galenite-blue-300: #a9bbc2;
  --color-galenite-blue-400: #8da3aa;
  --color-galenite-blue-500: #738b93;
  --color-galenite-blue-600: #61757d;
  --color-galenite-blue-700: #4e5e64;
  --color-galenite-blue-800: #384549;
  --color-galenite-blue-900: #263033;
  --color-galenite-blue-950: #151c1e;
}

SCSS

$galenite-blue: #374b52;
$galenite-blue-rgb: 55, 75, 82;
$galenite-blue-light: mix(#fff, $galenite-blue, 20%);
$galenite-blue-dark: mix(#000, $galenite-blue, 20%);

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