#7597F6

CSS

:root {
  --wisteria-blue: #7597f6;
  --wisteria-blue-rgb: 117 151 246;
  --wisteria-blue-oklch: oklch(0.693 0.145 267.7);
}

.element {
  color: var(--wisteria-blue);
  background-color: hsl(224 88% 71%);
  border-color: oklch(0.693 0.145 267.7);
}

Tailwind CSS v4

@theme {
  --color-wisteria-blue: #7597f6;
  --color-wisteria-blue-50: #e4f4ff;
  --color-wisteria-blue-100: #d4e7ff;
  --color-wisteria-blue-200: #bbd2ff;
  --color-wisteria-blue-300: #9ab4ff;
  --color-wisteria-blue-400: #799af4;
  --color-wisteria-blue-500: #5c7fe5;
  --color-wisteria-blue-600: #4e6cc1;
  --color-wisteria-blue-700: #3e569c;
  --color-wisteria-blue-800: #2a3f74;
  --color-wisteria-blue-900: #1c2c52;
  --color-wisteria-blue-950: #0d1837;
}

SCSS

$wisteria-blue: #7597f6;
$wisteria-blue-rgb: 117, 151, 246;
$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);
}