#5570C6

CSS

:root {
  --god-of-rain: #5570c6;
  --god-of-rain-rgb: 85 112 198;
  --god-of-rain-oklch: oklch(0.566 0.136 268.7);
}

.element {
  color: var(--god-of-rain);
  background-color: hsl(226 50% 55%);
  border-color: oklch(0.566 0.136 268.7);
}

Tailwind CSS v4

@theme {
  --color-god-of-rain: #5570c6;
  --color-god-of-rain-50: #e6f4ff;
  --color-god-of-rain-100: #d6e6ff;
  --color-god-of-rain-200: #bed2ff;
  --color-god-of-rain-300: #9db4fe;
  --color-god-of-rain-400: #7d9aef;
  --color-god-of-rain-500: #617fe0;
  --color-god-of-rain-600: #526cbd;
  --color-god-of-rain-700: #415698;
  --color-god-of-rain-800: #2d3f71;
  --color-god-of-rain-900: #1e2c50;
  --color-god-of-rain-950: #0e1935;
}

SCSS

$god-of-rain: #5570c6;
$god-of-rain-rgb: 85, 112, 198;
$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);
}