#7E98E4

CSS

:root {
  --wisteria-blue: #7e98e4;
  --wisteria-blue-rgb: 126 152 228;
  --wisteria-blue-oklch: oklch(0.691 0.116 268.9);
}

.element {
  color: var(--wisteria-blue);
  background-color: hsl(225 65% 69%);
  border-color: oklch(0.691 0.116 268.9);
}

Tailwind CSS v4

@theme {
  --color-wisteria-blue: #7e98e4;
  --color-wisteria-blue-50: #e8f4ff;
  --color-wisteria-blue-100: #d9e7ff;
  --color-wisteria-blue-200: #c1d2ff;
  --color-wisteria-blue-300: #a1b5f4;
  --color-wisteria-blue-400: #829be3;
  --color-wisteria-blue-500: #6781d3;
  --color-wisteria-blue-600: #576db2;
  --color-wisteria-blue-700: #45588f;
  --color-wisteria-blue-800: #30406b;
  --color-wisteria-blue-900: #212c4b;
  --color-wisteria-blue-950: #101931;
}

SCSS

$wisteria-blue: #7e98e4;
$wisteria-blue-rgb: 126, 152, 228;
$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);
}