#3665D9

CSS

:root {
  --god-of-rain: #3665d9;
  --god-of-rain-rgb: 54 101 217;
  --god-of-rain-oklch: oklch(0.541 0.186 264.4);
}

.element {
  color: var(--god-of-rain);
  background-color: hsl(223 68% 53%);
  border-color: oklch(0.541 0.186 264.4);
}

Tailwind CSS v4

@theme {
  --color-god-of-rain: #3665d9;
  --color-god-of-rain-50: #ddf5ff;
  --color-god-of-rain-100: #cbe7ff;
  --color-god-of-rain-200: #b0d2ff;
  --color-god-of-rain-300: #8bb3ff;
  --color-god-of-rain-400: #6698ff;
  --color-god-of-rain-500: #467cff;
  --color-god-of-rain-600: #3b69d7;
  --color-god-of-rain-700: #2f54ad;
  --color-god-of-rain-800: #1d3e81;
  --color-god-of-rain-900: #122b5c;
  --color-god-of-rain-950: #05173e;
}

SCSS

$god-of-rain: #3665d9;
$god-of-rain-rgb: 54, 101, 217;
$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);
}