Corundum Blue

CSS

:root {
  --corundum-blue: #4a6267;
  --corundum-blue-rgb: 74 98 103;
  --corundum-blue-oklch: oklch(0.479 0.03 211.8);
}

.element {
  color: var(--corundum-blue);
  background-color: hsl(190 16% 35%);
  border-color: oklch(0.479 0.03 211.8);
}

Tailwind CSS v4

@theme {
  --color-corundum-blue: #4a6267;
  --color-corundum-blue-50: #ecf8fa;
  --color-corundum-blue-100: #ddebee;
  --color-corundum-blue-200: #c7d8dc;
  --color-corundum-blue-300: #a7bcc1;
  --color-corundum-blue-400: #8ba3a9;
  --color-corundum-blue-500: #708c92;
  --color-corundum-blue-600: #5f767b;
  --color-corundum-blue-700: #4c5f63;
  --color-corundum-blue-800: #374548;
  --color-corundum-blue-900: #253032;
  --color-corundum-blue-950: #141c1e;
}

SCSS

$corundum-blue: #4a6267;
$corundum-blue-rgb: 74, 98, 103;
$corundum-blue-light: mix(#fff, $corundum-blue, 20%);
$corundum-blue-dark: mix(#000, $corundum-blue, 20%);

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