#759CDC

CSS

:root {
  --wisteria-blue: #759cdc;
  --wisteria-blue-rgb: 117 156 220;
  --wisteria-blue-oklch: oklch(0.69 0.104 260);
}

.element {
  color: var(--wisteria-blue);
  background-color: hsl(217 60% 66%);
  border-color: oklch(0.69 0.104 260);
}

Tailwind CSS v4

@theme {
  --color-wisteria-blue: #759cdc;
  --color-wisteria-blue-50: #e5f6ff;
  --color-wisteria-blue-100: #d5e9ff;
  --color-wisteria-blue-200: #bcd5ff;
  --color-wisteria-blue-300: #9ab8ed;
  --color-wisteria-blue-400: #7a9fdc;
  --color-wisteria-blue-500: #5c86cb;
  --color-wisteria-blue-600: #4f72ab;
  --color-wisteria-blue-700: #3f5b8a;
  --color-wisteria-blue-800: #2b4366;
  --color-wisteria-blue-900: #1d2e48;
  --color-wisteria-blue-950: #0d1b2f;
}

SCSS

$wisteria-blue: #759cdc;
$wisteria-blue-rgb: 117, 156, 220;
$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);
}