#4269BD

CSS

:root {
  --god-of-rain: #4269bd;
  --god-of-rain-rgb: 66 105 189;
  --god-of-rain-oklch: oklch(0.535 0.139 263.6);
}

.element {
  color: var(--god-of-rain);
  background-color: hsl(221 48% 50%);
  border-color: oklch(0.535 0.139 263.6);
}

Tailwind CSS v4

@theme {
  --color-god-of-rain: #4269bd;
  --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: #739cf0;
  --color-god-of-rain-500: #5582e1;
  --color-god-of-rain-600: #486ebe;
  --color-god-of-rain-700: #3a5899;
  --color-god-of-rain-800: #264172;
  --color-god-of-rain-900: #192d50;
  --color-god-of-rain-950: #0a1936;
}

SCSS

$god-of-rain: #4269bd;
$god-of-rain-rgb: 66, 105, 189;
$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);
}