#7E9AD6

CSS

:root {
  --wisteria-blue: #7e9ad6;
  --wisteria-blue-rgb: 126 154 214;
  --wisteria-blue-oklch: oklch(0.689 0.094 264.8);
}

.element {
  color: var(--wisteria-blue);
  background-color: hsl(221 52% 67%);
  border-color: oklch(0.689 0.094 264.8);
}

Tailwind CSS v4

@theme {
  --color-wisteria-blue: #7e9ad6;
  --color-wisteria-blue-50: #e9f5ff;
  --color-wisteria-blue-100: #dae8ff;
  --color-wisteria-blue-200: #c2d4fe;
  --color-wisteria-blue-300: #a1b7e9;
  --color-wisteria-blue-400: #839ed7;
  --color-wisteria-blue-500: #6785c5;
  --color-wisteria-blue-600: #5770a6;
  --color-wisteria-blue-700: #465a86;
  --color-wisteria-blue-800: #314263;
  --color-wisteria-blue-900: #212e46;
  --color-wisteria-blue-950: #101a2d;
}

SCSS

$wisteria-blue: #7e9ad6;
$wisteria-blue-rgb: 126, 154, 214;
$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);
}