#84C1DD

CSS

:root {
  --sky-fall: #84c1dd;
  --sky-fall-rgb: 132 193 221;
  --sky-fall-oklch: oklch(0.779 0.074 228.4);
}

.element {
  color: var(--sky-fall);
  background-color: hsl(199 57% 69%);
  border-color: oklch(0.779 0.074 228.4);
}

Tailwind CSS v4

@theme {
  --color-sky-fall: #84c1dd;
  --color-sky-fall-50: #e1faff;
  --color-sky-fall-100: #d0edfc;
  --color-sky-fall-200: #b5dbee;
  --color-sky-fall-300: #91bfd7;
  --color-sky-fall-400: #6fa7c1;
  --color-sky-fall-500: #4c90ad;
  --color-sky-fall-600: #417a92;
  --color-sky-fall-700: #346175;
  --color-sky-fall-800: #244856;
  --color-sky-fall-900: #18323c;
  --color-sky-fall-950: #081e26;
}

SCSS

$sky-fall: #84c1dd;
$sky-fall-rgb: 132, 193, 221;
$sky-fall-light: mix(#fff, $sky-fall, 20%);
$sky-fall-dark: mix(#000, $sky-fall, 20%);

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