#7899EA

CSS

:root {
  --wisteria-blue: #7899ea;
  --wisteria-blue-rgb: 120 153 234;
  --wisteria-blue-oklch: oklch(0.693 0.125 266.4);
}

.element {
  color: var(--wisteria-blue);
  background-color: hsl(223 73% 69%);
  border-color: oklch(0.693 0.125 266.4);
}

Tailwind CSS v4

@theme {
  --color-wisteria-blue: #7899ea;
  --color-wisteria-blue-50: #e6f5ff;
  --color-wisteria-blue-100: #d6e7ff;
  --color-wisteria-blue-200: #bdd3ff;
  --color-wisteria-blue-300: #9cb5f8;
  --color-wisteria-blue-400: #7c9ce9;
  --color-wisteria-blue-500: #5f82d9;
  --color-wisteria-blue-600: #516eb7;
  --color-wisteria-blue-700: #415893;
  --color-wisteria-blue-800: #2c416e;
  --color-wisteria-blue-900: #1e2d4d;
  --color-wisteria-blue-950: #0e1933;
}

SCSS

$wisteria-blue: #7899ea;
$wisteria-blue-rgb: 120, 153, 234;
$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);
}