#4269BF

CSS

:root {
  --god-of-rain: #4269bf;
  --god-of-rain-rgb: 66 105 191;
  --god-of-rain-oklch: oklch(0.536 0.142 263.9);
}

.element {
  color: var(--god-of-rain);
  background-color: hsl(221 49% 50%);
  border-color: oklch(0.536 0.142 263.9);
}

Tailwind CSS v4

@theme {
  --color-god-of-rain: #4269bf;
  --color-god-of-rain-50: #e2f5ff;
  --color-god-of-rain-100: #d2e8ff;
  --color-god-of-rain-200: #b8d4ff;
  --color-god-of-rain-300: #95b6ff;
  --color-god-of-rain-400: #739cf2;
  --color-god-of-rain-500: #5581e3;
  --color-god-of-rain-600: #486ec0;
  --color-god-of-rain-700: #39589a;
  --color-god-of-rain-800: #264173;
  --color-god-of-rain-900: #192d51;
  --color-god-of-rain-950: #0a1936;
}

SCSS

$god-of-rain: #4269bf;
$god-of-rain-rgb: 66, 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);
}