#7D96F2

CSS

:root {
  --wisteria-blue: #7d96f2;
  --wisteria-blue-rgb: 125 150 242;
  --wisteria-blue-oklch: oklch(0.694 0.138 270.9);
}

.element {
  color: var(--wisteria-blue);
  background-color: hsl(227 82% 72%);
  border-color: oklch(0.694 0.138 270.9);
}

Tailwind CSS v4

@theme {
  --color-wisteria-blue: #7d96f2;
  --color-wisteria-blue-50: #e8f3ff;
  --color-wisteria-blue-100: #d8e6ff;
  --color-wisteria-blue-200: #c0d1ff;
  --color-wisteria-blue-300: #a0b3fe;
  --color-wisteria-blue-400: #8099f0;
  --color-wisteria-blue-500: #657ee1;
  --color-wisteria-blue-600: #566bbe;
  --color-wisteria-blue-700: #445598;
  --color-wisteria-blue-800: #2f3f72;
  --color-wisteria-blue-900: #202b50;
  --color-wisteria-blue-950: #101836;
}

SCSS

$wisteria-blue: #7d96f2;
$wisteria-blue-rgb: 125, 150, 242;
$wisteria-blue-light: mix(#fff, $wisteria-blue, 20%);
$wisteria-blue-dark: mix(#000, $wisteria-blue, 20%);

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