#7F97EC

CSS

:root {
  --wisteria-blue: #7f97ec;
  --wisteria-blue-rgb: 127 151 236;
  --wisteria-blue-oklch: oklch(0.694 0.128 270.8);
}

.element {
  color: var(--wisteria-blue);
  background-color: hsl(227 74% 71%);
  border-color: oklch(0.694 0.128 270.8);
}

Tailwind CSS v4

@theme {
  --color-wisteria-blue: #7f97ec;
  --color-wisteria-blue-50: #e8f4ff;
  --color-wisteria-blue-100: #d9e6ff;
  --color-wisteria-blue-200: #c2d1ff;
  --color-wisteria-blue-300: #a1b3f9;
  --color-wisteria-blue-400: #8299ea;
  --color-wisteria-blue-500: #677fdb;
  --color-wisteria-blue-600: #576cb8;
  --color-wisteria-blue-700: #465694;
  --color-wisteria-blue-800: #303f6f;
  --color-wisteria-blue-900: #212c4e;
  --color-wisteria-blue-950: #101934;
}

SCSS

$wisteria-blue: #7f97ec;
$wisteria-blue-rgb: 127, 151, 236;
$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);
}