#789DCE

CSS

:root {
  --wisteria-blue: #789dce;
  --wisteria-blue-rgb: 120 157 206;
  --wisteria-blue-oklch: oklch(0.688 0.084 255.7);
}

.element {
  color: var(--wisteria-blue);
  background-color: hsl(214 47% 64%);
  border-color: oklch(0.688 0.084 255.7);
}

Tailwind CSS v4

@theme {
  --color-wisteria-blue: #789dce;
  --color-wisteria-blue-50: #e7f7ff;
  --color-wisteria-blue-100: #d7e9ff;
  --color-wisteria-blue-200: #bed6f8;
  --color-wisteria-blue-300: #9db9e3;
  --color-wisteria-blue-400: #7ea1d0;
  --color-wisteria-blue-500: #6088bd;
  --color-wisteria-blue-600: #52739f;
  --color-wisteria-blue-700: #415c80;
  --color-wisteria-blue-800: #2d445f;
  --color-wisteria-blue-900: #1f2f42;
  --color-wisteria-blue-950: #0e1b2b;
}

SCSS

$wisteria-blue: #789dce;
$wisteria-blue-rgb: 120, 157, 206;
$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);
}