#5170C9

CSS

:root {
  --god-of-rain: #5170c9;
  --god-of-rain-rgb: 81 112 201;
  --god-of-rain-oklch: oklch(0.566 0.142 267.3);
}

.element {
  color: var(--god-of-rain);
  background-color: hsl(225 53% 55%);
  border-color: oklch(0.566 0.142 267.3);
}

Tailwind CSS v4

@theme {
  --color-god-of-rain: #5170c9;
  --color-god-of-rain-50: #e5f4ff;
  --color-god-of-rain-100: #d5e7ff;
  --color-god-of-rain-200: #bcd2ff;
  --color-god-of-rain-300: #9ab4ff;
  --color-god-of-rain-400: #799af2;
  --color-god-of-rain-500: #5c7fe3;
  --color-god-of-rain-600: #4f6cc0;
  --color-god-of-rain-700: #3e569a;
  --color-god-of-rain-800: #2a4073;
  --color-god-of-rain-900: #1c2c51;
  --color-god-of-rain-950: #0d1936;
}

SCSS

$god-of-rain: #5170c9;
$god-of-rain-rgb: 81, 112, 201;
$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);
}