#3F69C0

CSS

:root {
  --god-of-rain: #3f69c0;
  --god-of-rain-rgb: 63 105 192;
  --god-of-rain-oklch: oklch(0.536 0.144 263);
}

.element {
  color: var(--god-of-rain);
  background-color: hsl(220 51% 50%);
  border-color: oklch(0.536 0.144 263);
}

Tailwind CSS v4

@theme {
  --color-god-of-rain: #3f69c0;
  --color-god-of-rain-50: #e1f5ff;
  --color-god-of-rain-100: #d1e8ff;
  --color-god-of-rain-200: #b6d4ff;
  --color-god-of-rain-300: #93b6ff;
  --color-god-of-rain-400: #719cf3;
  --color-god-of-rain-500: #5282e5;
  --color-god-of-rain-600: #466ec1;
  --color-god-of-rain-700: #37589b;
  --color-god-of-rain-800: #244174;
  --color-god-of-rain-900: #182d52;
  --color-god-of-rain-950: #091937;
}

SCSS

$god-of-rain: #3f69c0;
$god-of-rain-rgb: 63, 105, 192;
$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);
}