#3B67CC

CSS

:root {
  --god-of-rain: #3b67cc;
  --god-of-rain-rgb: 59 103 204;
  --god-of-rain-oklch: oklch(0.538 0.164 264);
}

.element {
  color: var(--god-of-rain);
  background-color: hsl(222 59% 52%);
  border-color: oklch(0.538 0.164 264);
}

Tailwind CSS v4

@theme {
  --color-god-of-rain: #3b67cc;
  --color-god-of-rain-50: #dff5ff;
  --color-god-of-rain-100: #cee8ff;
  --color-god-of-rain-200: #b3d3ff;
  --color-god-of-rain-300: #90b5ff;
  --color-god-of-rain-400: #6c9aff;
  --color-god-of-rain-500: #4c7ff1;
  --color-god-of-rain-600: #416ccc;
  --color-god-of-rain-700: #3456a4;
  --color-god-of-rain-800: #213f7a;
  --color-god-of-rain-900: #162c56;
  --color-god-of-rain-950: #07183a;
}

SCSS

$god-of-rain: #3b67cc;
$god-of-rain-rgb: 59, 103, 204;
$god-of-rain-light: mix(#fff, $god-of-rain, 20%);
$god-of-rain-dark: mix(#000, $god-of-rain, 20%);

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