Delft Blue

CSS

:root {
  --delft-blue: #3311ee;
  --delft-blue-rgb: 51 17 238;
  --delft-blue-oklch: oklch(0.451 0.283 271.5);
}

.element {
  color: var(--delft-blue);
  background-color: hsl(249 87% 50%);
  border-color: oklch(0.451 0.283 271.5);
}

Tailwind CSS v4

@theme {
  --color-delft-blue: #3311ee;
  --color-delft-blue-50: #dbf0ff;
  --color-delft-blue-100: #cae1ff;
  --color-delft-blue-200: #afc9ff;
  --color-delft-blue-300: #8da5ff;
  --color-delft-blue-400: #6983ff;
  --color-delft-blue-500: #5259ff;
  --color-delft-blue-600: #454dff;
  --color-delft-blue-700: #363ed6;
  --color-delft-blue-800: #212ea2;
  --color-delft-blue-900: #151f73;
  --color-delft-blue-950: #090c51;
}

SCSS

$delft-blue: #3311ee;
$delft-blue-rgb: 51, 17, 238;
$delft-blue-light: mix(#fff, $delft-blue, 20%);
$delft-blue-dark: mix(#000, $delft-blue, 20%);

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