#230596

CSS

:root {
  --dramatic-blue: #230596;
  --dramatic-blue-rgb: 35 5 150;
  --dramatic-blue-oklch: oklch(0.323 0.2 274.3);
}

.element {
  color: var(--dramatic-blue);
  background-color: hsl(252 94% 30%);
  border-color: oklch(0.323 0.2 274.3);
}

Tailwind CSS v4

@theme {
  --color-dramatic-blue: #230596;
  --color-dramatic-blue-50: #e5f1ff;
  --color-dramatic-blue-100: #d6e3ff;
  --color-dramatic-blue-200: #bdccff;
  --color-dramatic-blue-300: #9dacff;
  --color-dramatic-blue-400: #7d90ff;
  --color-dramatic-blue-500: #6370ff;
  --color-dramatic-blue-600: #5460de;
  --color-dramatic-blue-700: #434db2;
  --color-dramatic-blue-800: #2d3886;
  --color-dramatic-blue-900: #1e275f;
  --color-dramatic-blue-950: #0f1441;
}

SCSS

$dramatic-blue: #230596;
$dramatic-blue-rgb: 35, 5, 150;
$dramatic-blue-light: mix(#fff, $dramatic-blue, 20%);
$dramatic-blue-dark: mix(#000, $dramatic-blue, 20%);

.element {
  color: $dramatic-blue;
  box-shadow: 0 0 0 2px rgba($dramatic-blue, 0.35);
}