#5370CA

CSS

:root {
  --god-of-rain: #5370ca;
  --god-of-rain-rgb: 83 112 202;
  --god-of-rain-oklch: oklch(0.567 0.143 268.2);
}

.element {
  color: var(--god-of-rain);
  background-color: hsl(225 53% 56%);
  border-color: oklch(0.567 0.143 268.2);
}

Tailwind CSS v4

@theme {
  --color-god-of-rain: #5370ca;
  --color-god-of-rain-50: #e5f4ff;
  --color-god-of-rain-100: #d5e6ff;
  --color-god-of-rain-200: #bcd2ff;
  --color-god-of-rain-300: #9bb4ff;
  --color-god-of-rain-400: #7b9af3;
  --color-god-of-rain-500: #5e7fe4;
  --color-god-of-rain-600: #506bc0;
  --color-god-of-rain-700: #40569b;
  --color-god-of-rain-800: #2b3f73;
  --color-god-of-rain-900: #1d2c51;
  --color-god-of-rain-950: #0d1836;
}

SCSS

$god-of-rain: #5370ca;
$god-of-rain-rgb: 83, 112, 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);
}