#92D8D4

CSS

:root {
  --cold-blue: #92d8d4;
  --cold-blue-rgb: 146 216 212;
  --cold-blue-oklch: oklch(0.835 0.07 191.4);
}

.element {
  color: var(--cold-blue);
  background-color: hsl(177 47% 71%);
  border-color: oklch(0.835 0.07 191.4);
}

Tailwind CSS v4

@theme {
  --color-cold-blue: #92d8d4;
  --color-cold-blue-50: #dffcfb;
  --color-cold-blue-100: #cef0ee;
  --color-cold-blue-200: #b2dedd;
  --color-cold-blue-300: #8dc3c1;
  --color-cold-blue-400: #6baca9;
  --color-cold-blue-500: #479592;
  --color-cold-blue-600: #3d7e7b;
  --color-cold-blue-700: #316563;
  --color-cold-blue-800: #224a47;
  --color-cold-blue-900: #173431;
  --color-cold-blue-950: #071f1d;
}

SCSS

$cold-blue: #92d8d4;
$cold-blue-rgb: 146, 216, 212;
$cold-blue-light: mix(#fff, $cold-blue, 20%);
$cold-blue-dark: mix(#000, $cold-blue, 20%);

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