#4E62D4

CSS

:root {
  --savoy-blue: #4e62d4;
  --savoy-blue-rgb: 78 98 212;
  --savoy-blue-oklch: oklch(0.543 0.176 271.8);
}

.element {
  color: var(--savoy-blue);
  background-color: hsl(231 61% 57%);
  border-color: oklch(0.543 0.176 271.8);
}

Tailwind CSS v4

@theme {
  --color-savoy-blue: #4e62d4;
  --color-savoy-blue-50: #e5f3ff;
  --color-savoy-blue-100: #d5e4ff;
  --color-savoy-blue-200: #bccfff;
  --color-savoy-blue-300: #9bb0ff;
  --color-savoy-blue-400: #7b94ff;
  --color-savoy-blue-500: #6077f8;
  --color-savoy-blue-600: #5165d1;
  --color-savoy-blue-700: #4051a8;
  --color-savoy-blue-800: #2b3c7e;
  --color-savoy-blue-900: #1d2959;
  --color-savoy-blue-950: #0e163d;
}

SCSS

$savoy-blue: #4e62d4;
$savoy-blue-rgb: 78, 98, 212;
$savoy-blue-light: mix(#fff, $savoy-blue, 20%);
$savoy-blue-dark: mix(#000, $savoy-blue, 20%);

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