#7C96F5

CSS

:root {
  --wisteria-blue: #7c96f5;
  --wisteria-blue-rgb: 124 150 245;
  --wisteria-blue-oklch: oklch(0.695 0.143 270.8);
}

.element {
  color: var(--wisteria-blue);
  background-color: hsl(227 86% 72%);
  border-color: oklch(0.695 0.143 270.8);
}

Tailwind CSS v4

@theme {
  --color-wisteria-blue: #7c96f5;
  --color-wisteria-blue-50: #e7f3ff;
  --color-wisteria-blue-100: #d7e6ff;
  --color-wisteria-blue-200: #bfd1ff;
  --color-wisteria-blue-300: #9fb2ff;
  --color-wisteria-blue-400: #7f98f3;
  --color-wisteria-blue-500: #647de4;
  --color-wisteria-blue-600: #556ac0;
  --color-wisteria-blue-700: #43559a;
  --color-wisteria-blue-800: #2e3e73;
  --color-wisteria-blue-900: #1f2b51;
  --color-wisteria-blue-950: #0f1836;
}

SCSS

$wisteria-blue: #7c96f5;
$wisteria-blue-rgb: 124, 150, 245;
$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);
}