#6160C6

CSS

:root {
  --savoy-blue: #6160c6;
  --savoy-blue-rgb: 97 96 198;
  --savoy-blue-oklch: oklch(0.542 0.155 280.4);
}

.element {
  color: var(--savoy-blue);
  background-color: hsl(241 47% 58%);
  border-color: oklch(0.542 0.155 280.4);
}

Tailwind CSS v4

@theme {
  --color-savoy-blue: #6160c6;
  --color-savoy-blue-50: #eef1ff;
  --color-savoy-blue-100: #dfe2ff;
  --color-savoy-blue-200: #caccff;
  --color-savoy-blue-300: #abadff;
  --color-savoy-blue-400: #8e92f7;
  --color-savoy-blue-500: #7675e9;
  --color-savoy-blue-600: #6364c4;
  --color-savoy-blue-700: #4f509e;
  --color-savoy-blue-800: #373a76;
  --color-savoy-blue-900: #262854;
  --color-savoy-blue-950: #151638;
}

SCSS

$savoy-blue: #6160c6;
$savoy-blue-rgb: 97, 96, 198;
$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);
}