Blue Wonder

CSS

:root {
  --blue-wonder: #404664;
  --blue-wonder-rgb: 64 70 100;
  --blue-wonder-oklch: oklch(0.402 0.051 275.2);
}

.element {
  color: var(--blue-wonder);
  background-color: hsl(230 22% 32%);
  border-color: oklch(0.402 0.051 275.2);
}

Tailwind CSS v4

@theme {
  --color-blue-wonder: #404664;
  --color-blue-wonder-50: #f1f4ff;
  --color-blue-wonder-100: #e3e7f9;
  --color-blue-wonder-200: #ced3eb;
  --color-blue-wonder-300: #b0b6d2;
  --color-blue-wonder-400: #959dbd;
  --color-blue-wonder-500: #7c84a9;
  --color-blue-wonder-600: #69708e;
  --color-blue-wonder-700: #545972;
  --color-blue-wonder-800: #3c4154;
  --color-blue-wonder-900: #292d3b;
  --color-blue-wonder-950: #171a25;
}

SCSS

$blue-wonder: #404664;
$blue-wonder-rgb: 64, 70, 100;
$blue-wonder-light: mix(#fff, $blue-wonder, 20%);
$blue-wonder-dark: mix(#000, $blue-wonder, 20%);

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