#5570C4

CSS

:root {
  --god-of-rain: #5570c4;
  --god-of-rain-rgb: 85 112 196;
  --god-of-rain-oklch: oklch(0.565 0.134 268.5);
}

.element {
  color: var(--god-of-rain);
  background-color: hsl(225 48% 55%);
  border-color: oklch(0.565 0.134 268.5);
}

Tailwind CSS v4

@theme {
  --color-god-of-rain: #5570c4;
  --color-god-of-rain-50: #e6f4ff;
  --color-god-of-rain-100: #d7e7ff;
  --color-god-of-rain-200: #bed2ff;
  --color-god-of-rain-300: #9db4fc;
  --color-god-of-rain-400: #7d9aed;
  --color-god-of-rain-500: #6180de;
  --color-god-of-rain-600: #536cbb;
  --color-god-of-rain-700: #425797;
  --color-god-of-rain-800: #2d4070;
  --color-god-of-rain-900: #1e2c4f;
  --color-god-of-rain-950: #0e1935;
}

SCSS

$god-of-rain: #5570c4;
$god-of-rain-rgb: 85, 112, 196;
$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);
}