#626BCF

CSS

:root {
  --savoy-blue: #626bcf;
  --savoy-blue-rgb: 98 107 207;
  --savoy-blue-oklch: oklch(0.57 0.152 276.6);
}

.element {
  color: var(--savoy-blue);
  background-color: hsl(235 53% 60%);
  border-color: oklch(0.57 0.152 276.6);
}

Tailwind CSS v4

@theme {
  --color-savoy-blue: #626bcf;
  --color-savoy-blue-50: #ebf2ff;
  --color-savoy-blue-100: #dce4ff;
  --color-savoy-blue-200: #c5ceff;
  --color-savoy-blue-300: #a6afff;
  --color-savoy-blue-400: #8894f7;
  --color-savoy-blue-500: #6e78e9;
  --color-savoy-blue-600: #5d66c4;
  --color-savoy-blue-700: #4a529e;
  --color-savoy-blue-800: #343c76;
  --color-savoy-blue-900: #232953;
  --color-savoy-blue-950: #121638;
}

SCSS

$savoy-blue: #626bcf;
$savoy-blue-rgb: 98, 107, 207;
$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);
}