Whispering Blue

CSS

:root {
  --whispering-blue: #c8dcdc;
  --whispering-blue-rgb: 200 220 220;
  --whispering-blue-oklch: oklch(0.88 0.021 196.8);
}

.element {
  color: var(--whispering-blue);
  background-color: hsl(180 22% 82%);
  border-color: oklch(0.88 0.021 196.8);
}

Tailwind CSS v4

@theme {
  --color-whispering-blue: #c8dcdc;
  --color-whispering-blue-50: #eef7f7;
  --color-whispering-blue-100: #e0eaea;
  --color-whispering-blue-200: #cad7d7;
  --color-whispering-blue-300: #abbbbb;
  --color-whispering-blue-400: #91a3a3;
  --color-whispering-blue-500: #768b8b;
  --color-whispering-blue-600: #647576;
  --color-whispering-blue-700: #505e5e;
  --color-whispering-blue-800: #3a4545;
  --color-whispering-blue-900: #28302f;
  --color-whispering-blue-950: #161c1c;
}

SCSS

$whispering-blue: #c8dcdc;
$whispering-blue-rgb: 200, 220, 220;
$whispering-blue-light: mix(#fff, $whispering-blue, 20%);
$whispering-blue-dark: mix(#000, $whispering-blue, 20%);

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