#4266CA

CSS

:root {
  --god-of-rain: #4266ca;
  --god-of-rain-rgb: 66 102 202;
  --god-of-rain-oklch: oklch(0.538 0.161 266.2);
}

.element {
  color: var(--god-of-rain);
  background-color: hsl(224 56% 53%);
  border-color: oklch(0.538 0.161 266.2);
}

Tailwind CSS v4

@theme {
  --color-god-of-rain: #4266ca;
  --color-god-of-rain-50: #e1f4ff;
  --color-god-of-rain-100: #d1e7ff;
  --color-god-of-rain-200: #b7d2ff;
  --color-god-of-rain-300: #94b4ff;
  --color-god-of-rain-400: #7299fd;
  --color-god-of-rain-500: #547eef;
  --color-god-of-rain-600: #486bca;
  --color-god-of-rain-700: #3955a2;
  --color-god-of-rain-800: #253f79;
  --color-god-of-rain-900: #192b56;
  --color-god-of-rain-950: #0a183a;
}

SCSS

$god-of-rain: #4266ca;
$god-of-rain-rgb: 66, 102, 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);
}