Iron Head

CSS

:root {
  --iron-head: #344d56;
  --iron-head-rgb: 52 77 86;
  --iron-head-oklch: oklch(0.404 0.034 222.4);
}

.element {
  color: var(--iron-head);
  background-color: hsl(196 25% 27%);
  border-color: oklch(0.404 0.034 222.4);
}

Tailwind CSS v4

@theme {
  --color-iron-head: #344d56;
  --color-iron-head-50: #ebf7fc;
  --color-iron-head-100: #ddebf0;
  --color-iron-head-200: #c6d8df;
  --color-iron-head-300: #a6bcc4;
  --color-iron-head-400: #89a3ad;
  --color-iron-head-500: #6e8c97;
  --color-iron-head-600: #5d767f;
  --color-iron-head-700: #4a5f66;
  --color-iron-head-800: #36454b;
  --color-iron-head-900: #253034;
  --color-iron-head-950: #131c1f;
}

SCSS

$iron-head: #344d56;
$iron-head-rgb: 52, 77, 86;
$iron-head-light: mix(#fff, $iron-head, 20%);
$iron-head-dark: mix(#000, $iron-head, 20%);

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