#8298DF

CSS

:root {
  --wisteria-blue: #8298df;
  --wisteria-blue-rgb: 130 152 223;
  --wisteria-blue-oklch: oklch(0.691 0.108 270.3);
}

.element {
  color: var(--wisteria-blue);
  background-color: hsl(226 59% 69%);
  border-color: oklch(0.691 0.108 270.3);
}

Tailwind CSS v4

@theme {
  --color-wisteria-blue: #8298df;
  --color-wisteria-blue-50: #eaf4ff;
  --color-wisteria-blue-100: #dbe6ff;
  --color-wisteria-blue-200: #c4d2ff;
  --color-wisteria-blue-300: #a4b4ef;
  --color-wisteria-blue-400: #869bdf;
  --color-wisteria-blue-500: #6b81ce;
  --color-wisteria-blue-600: #5b6eae;
  --color-wisteria-blue-700: #48588b;
  --color-wisteria-blue-800: #324068;
  --color-wisteria-blue-900: #222c49;
  --color-wisteria-blue-950: #121930;
}

SCSS

$wisteria-blue: #8298df;
$wisteria-blue-rgb: 130, 152, 223;
$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);
}