#7599E9

CSS

:root {
  --wisteria-blue: #7599e9;
  --wisteria-blue-rgb: 117 153 233;
  --wisteria-blue-oklch: oklch(0.69 0.125 264.9);
}

.element {
  color: var(--wisteria-blue);
  background-color: hsl(221 73% 69%);
  border-color: oklch(0.69 0.125 264.9);
}

Tailwind CSS v4

@theme {
  --color-wisteria-blue: #7599e9;
  --color-wisteria-blue-50: #e5f5ff;
  --color-wisteria-blue-100: #d5e8ff;
  --color-wisteria-blue-200: #bcd3ff;
  --color-wisteria-blue-300: #9ab6f8;
  --color-wisteria-blue-400: #7a9ce9;
  --color-wisteria-blue-500: #5d82d9;
  --color-wisteria-blue-600: #4f6eb7;
  --color-wisteria-blue-700: #3f5893;
  --color-wisteria-blue-800: #2b416d;
  --color-wisteria-blue-900: #1d2d4d;
  --color-wisteria-blue-950: #0d1a33;
}

SCSS

$wisteria-blue: #7599e9;
$wisteria-blue-rgb: 117, 153, 233;
$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);
}