#0096AE

CSS

:root {
  --munsell-blue: #0096ae;
  --munsell-blue-rgb: 0 150 174;
  --munsell-blue-oklch: oklch(0.619 0.109 214.3);
}

.element {
  color: var(--munsell-blue);
  background-color: hsl(188 100% 34%);
  border-color: oklch(0.619 0.109 214.3);
}

Tailwind CSS v4

@theme {
  --color-munsell-blue: #0096ae;
  --color-munsell-blue-50: #d3feff;
  --color-munsell-blue-100: #c0f2ff;
  --color-munsell-blue-200: #9ee1f2;
  --color-munsell-blue-300: #72c6db;
  --color-munsell-blue-400: #40afc6;
  --color-munsell-blue-500: #0098b2;
  --color-munsell-blue-600: #008096;
  --color-munsell-blue-700: #006779;
  --color-munsell-blue-800: #004c58;
  --color-munsell-blue-900: #00353e;
  --color-munsell-blue-950: #002027;
}

SCSS

$munsell-blue: #0096ae;
$munsell-blue-rgb: 0, 150, 174;
$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);
}