#4069BF

CSS

:root {
  --god-of-rain: #4069bf;
  --god-of-rain-rgb: 64 105 191;
  --god-of-rain-oklch: oklch(0.535 0.142 263.2);
}

.element {
  color: var(--god-of-rain);
  background-color: hsl(221 50% 50%);
  border-color: oklch(0.535 0.142 263.2);
}

Tailwind CSS v4

@theme {
  --color-god-of-rain: #4069bf;
  --color-god-of-rain-50: #e2f5ff;
  --color-god-of-rain-100: #d1e8ff;
  --color-god-of-rain-200: #b7d4ff;
  --color-god-of-rain-300: #94b6ff;
  --color-god-of-rain-400: #729cf2;
  --color-god-of-rain-500: #5382e3;
  --color-god-of-rain-600: #476ec0;
  --color-god-of-rain-700: #38589a;
  --color-god-of-rain-800: #254173;
  --color-god-of-rain-900: #192d51;
  --color-god-of-rain-950: #091936;
}

SCSS

$god-of-rain: #4069bf;
$god-of-rain-rgb: 64, 105, 191;
$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);
}