#7998E9

CSS

:root {
  --wisteria-blue: #7998e9;
  --wisteria-blue-rgb: 121 152 233;
  --wisteria-blue-oklch: oklch(0.691 0.125 267.2);
}

.element {
  color: var(--wisteria-blue);
  background-color: hsl(223 72% 69%);
  border-color: oklch(0.691 0.125 267.2);
}

Tailwind CSS v4

@theme {
  --color-wisteria-blue: #7998e9;
  --color-wisteria-blue-50: #e6f5ff;
  --color-wisteria-blue-100: #d7e7ff;
  --color-wisteria-blue-200: #bed3ff;
  --color-wisteria-blue-300: #9db5f8;
  --color-wisteria-blue-400: #7e9be8;
  --color-wisteria-blue-500: #6181d9;
  --color-wisteria-blue-600: #536eb7;
  --color-wisteria-blue-700: #425893;
  --color-wisteria-blue-800: #2d406d;
  --color-wisteria-blue-900: #1e2c4d;
  --color-wisteria-blue-950: #0e1933;
}

SCSS

$wisteria-blue: #7998e9;
$wisteria-blue-rgb: 121, 152, 233;
$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);
}