#7F9DC5

CSS

:root {
  --wisteria-blue: #7f9dc5;
  --wisteria-blue-rgb: 127 157 197;
  --wisteria-blue-oklch: oklch(0.688 0.068 255.8);
}

.element {
  color: var(--wisteria-blue);
  background-color: hsl(214 38% 64%);
  border-color: oklch(0.688 0.068 255.8);
}

Tailwind CSS v4

@theme {
  --color-wisteria-blue: #7f9dc5;
  --color-wisteria-blue-50: #e9f6ff;
  --color-wisteria-blue-100: #dae9ff;
  --color-wisteria-blue-200: #c3d6f2;
  --color-wisteria-blue-300: #a2b9db;
  --color-wisteria-blue-400: #84a1c7;
  --color-wisteria-blue-500: #6888b3;
  --color-wisteria-blue-600: #587397;
  --color-wisteria-blue-700: #465c79;
  --color-wisteria-blue-800: #32445a;
  --color-wisteria-blue-900: #222f3f;
  --color-wisteria-blue-950: #111b28;
}

SCSS

$wisteria-blue: #7f9dc5;
$wisteria-blue-rgb: 127, 157, 197;
$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);
}