#76D7FF

CSS

:root {
  --sky: #76d7ff;
  --sky-rgb: 118 215 255;
  --sky-oklch: oklch(0.835 0.107 227.1);
}

.element {
  color: var(--sky);
  background-color: hsl(198 100% 73%);
  border-color: oklch(0.835 0.107 227.1);
}

Tailwind CSS v4

@theme {
  --color-sky: #76d7ff;
  --color-sky-50: #d7fcff;
  --color-sky-100: #c4f0ff;
  --color-sky-200: #a5def9;
  --color-sky-300: #7bc2e3;
  --color-sky-400: #4fabd0;
  --color-sky-500: #0a93bd;
  --color-sky-600: #127d9f;
  --color-sky-700: #106480;
  --color-sky-800: #054a5e;
  --color-sky-900: #053342;
  --color-sky-950: #001f2a;
}

SCSS

$sky: #76d7ff;
$sky-rgb: 118, 215, 255;
$sky-light: mix(#fff, $sky, 20%);
$sky-dark: mix(#000, $sky, 20%);

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