#7E95F3

CSS

:root {
  --wisteria-blue: #7e95f3;
  --wisteria-blue-rgb: 126 149 243;
  --wisteria-blue-oklch: oklch(0.693 0.141 271.9);
}

.element {
  color: var(--wisteria-blue);
  background-color: hsl(228 83% 72%);
  border-color: oklch(0.693 0.141 271.9);
}

Tailwind CSS v4

@theme {
  --color-wisteria-blue: #7e95f3;
  --color-wisteria-blue-50: #e8f3ff;
  --color-wisteria-blue-100: #d9e5ff;
  --color-wisteria-blue-200: #c1d1ff;
  --color-wisteria-blue-300: #a1b2ff;
  --color-wisteria-blue-400: #8198f1;
  --color-wisteria-blue-500: #667de2;
  --color-wisteria-blue-600: #576abf;
  --color-wisteria-blue-700: #455599;
  --color-wisteria-blue-800: #303e73;
  --color-wisteria-blue-900: #202b51;
  --color-wisteria-blue-950: #101836;
}

SCSS

$wisteria-blue: #7e95f3;
$wisteria-blue-rgb: 126, 149, 243;
$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);
}