Heavenly Sky

CSS

:root {
  --heavenly-sky: #6b90b3;
  --heavenly-sky-rgb: 107 144 179;
  --heavenly-sky-oklch: oklch(0.639 0.067 247.5);
}

.element {
  color: var(--heavenly-sky);
  background-color: hsl(209 32% 56%);
  border-color: oklch(0.639 0.067 247.5);
}

Tailwind CSS v4

@theme {
  --color-heavenly-sky: #6b90b3;
  --color-heavenly-sky-50: #e7f7ff;
  --color-heavenly-sky-100: #d8eafe;
  --color-heavenly-sky-200: #bfd7f0;
  --color-heavenly-sky-300: #9ebbd9;
  --color-heavenly-sky-400: #7fa3c5;
  --color-heavenly-sky-500: #628ab1;
  --color-heavenly-sky-600: #537595;
  --color-heavenly-sky-700: #425e78;
  --color-heavenly-sky-800: #2f4558;
  --color-heavenly-sky-900: #1f303e;
  --color-heavenly-sky-950: #0f1c27;
}

SCSS

$heavenly-sky: #6b90b3;
$heavenly-sky-rgb: 107, 144, 179;
$heavenly-sky-light: mix(#fff, $heavenly-sky, 20%);
$heavenly-sky-dark: mix(#000, $heavenly-sky, 20%);

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