#88D6EF

CSS

:root {
  --over-the-sky: #88d6ef;
  --over-the-sky-rgb: 136 214 239;
  --over-the-sky-oklch: oklch(0.834 0.084 220.3);
}

.element {
  color: var(--over-the-sky);
  background-color: hsl(195 76% 74%);
  border-color: oklch(0.834 0.084 220.3);
}

Tailwind CSS v4

@theme {
  --color-over-the-sky: #88d6ef;
  --color-over-the-sky-50: #dcfbff;
  --color-over-the-sky-100: #caeffc;
  --color-over-the-sky-200: #aeddee;
  --color-over-the-sky-300: #87c2d7;
  --color-over-the-sky-400: #61aac1;
  --color-over-the-sky-500: #3893ad;
  --color-over-the-sky-600: #317c92;
  --color-over-the-sky-700: #276475;
  --color-over-the-sky-800: #1a4956;
  --color-over-the-sky-900: #11333c;
  --color-over-the-sky-950: #031e26;
}

SCSS

$over-the-sky: #88d6ef;
$over-the-sky-rgb: 136, 214, 239;
$over-the-sky-light: mix(#fff, $over-the-sky, 20%);
$over-the-sky-dark: mix(#000, $over-the-sky, 20%);

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