#008FA9

CSS

:root {
  --munsell-blue: #008fa9;
  --munsell-blue-rgb: 0 143 169;
  --munsell-blue-oklch: oklch(0.599 0.107 216.6);
}

.element {
  color: var(--munsell-blue);
  background-color: hsl(189 100% 33%);
  border-color: oklch(0.599 0.107 216.6);
}

Tailwind CSS v4

@theme {
  --color-munsell-blue: #008fa9;
  --color-munsell-blue-50: #d4fdff;
  --color-munsell-blue-100: #c1f1ff;
  --color-munsell-blue-200: #a0e0f3;
  --color-munsell-blue-300: #75c5dc;
  --color-munsell-blue-400: #45aec7;
  --color-munsell-blue-500: #0097b4;
  --color-munsell-blue-600: #007f98;
  --color-munsell-blue-700: #00667a;
  --color-munsell-blue-800: #004b59;
  --color-munsell-blue-900: #00343e;
  --color-munsell-blue-950: #002028;
}

SCSS

$munsell-blue: #008fa9;
$munsell-blue-rgb: 0, 143, 169;
$munsell-blue-light: mix(#fff, $munsell-blue, 20%);
$munsell-blue-dark: mix(#000, $munsell-blue, 20%);

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