#3469CA

CSS

:root {
  --god-of-rain: #3469ca;
  --god-of-rain-rgb: 52 105 202;
  --god-of-rain-oklch: oklch(0.538 0.161 261.3);
}

.element {
  color: var(--god-of-rain);
  background-color: hsl(219 59% 50%);
  border-color: oklch(0.538 0.161 261.3);
}

Tailwind CSS v4

@theme {
  --color-god-of-rain: #3469ca;
  --color-god-of-rain-50: #ddf6ff;
  --color-god-of-rain-100: #cce8ff;
  --color-god-of-rain-200: #b0d4ff;
  --color-god-of-rain-300: #8cb6ff;
  --color-god-of-rain-400: #679cfd;
  --color-god-of-rain-500: #4581ef;
  --color-god-of-rain-600: #3b6eca;
  --color-god-of-rain-700: #2f58a2;
  --color-god-of-rain-800: #1d4179;
  --color-god-of-rain-900: #132d56;
  --color-god-of-rain-950: #05193a;
}

SCSS

$god-of-rain: #3469ca;
$god-of-rain-rgb: 52, 105, 202;
$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);
}