#7B95F8

CSS

:root {
  --wisteria-blue: #7b95f8;
  --wisteria-blue-rgb: 123 149 248;
  --wisteria-blue-oklch: oklch(0.694 0.148 271);
}

.element {
  color: var(--wisteria-blue);
  background-color: hsl(228 90% 73%);
  border-color: oklch(0.694 0.148 271);
}

Tailwind CSS v4

@theme {
  --color-wisteria-blue: #7b95f8;
  --color-wisteria-blue-50: #e7f3ff;
  --color-wisteria-blue-100: #d7e5ff;
  --color-wisteria-blue-200: #bfd1ff;
  --color-wisteria-blue-300: #9eb2ff;
  --color-wisteria-blue-400: #7e98f6;
  --color-wisteria-blue-500: #637ce7;
  --color-wisteria-blue-600: #5469c3;
  --color-wisteria-blue-700: #43549d;
  --color-wisteria-blue-800: #2e3e75;
  --color-wisteria-blue-900: #1f2b53;
  --color-wisteria-blue-950: #0f1837;
}

SCSS

$wisteria-blue: #7b95f8;
$wisteria-blue-rgb: 123, 149, 248;
$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);
}