#7A97F1

CSS

:root {
  --wisteria-blue: #7a97f1;
  --wisteria-blue-rgb: 122 151 241;
  --wisteria-blue-oklch: oklch(0.693 0.137 269.1);
}

.element {
  color: var(--wisteria-blue);
  background-color: hsl(225 81% 71%);
  border-color: oklch(0.693 0.137 269.1);
}

Tailwind CSS v4

@theme {
  --color-wisteria-blue: #7a97f1;
  --color-wisteria-blue-50: #e6f4ff;
  --color-wisteria-blue-100: #d7e6ff;
  --color-wisteria-blue-200: #bed2ff;
  --color-wisteria-blue-300: #9eb3fe;
  --color-wisteria-blue-400: #7e9aef;
  --color-wisteria-blue-500: #627fe0;
  --color-wisteria-blue-600: #536cbd;
  --color-wisteria-blue-700: #425698;
  --color-wisteria-blue-800: #2d3f71;
  --color-wisteria-blue-900: #1e2c50;
  --color-wisteria-blue-950: #0e1835;
}

SCSS

$wisteria-blue: #7a97f1;
$wisteria-blue-rgb: 122, 151, 241;
$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);
}