#7A9DCC

CSS

:root {
  --wisteria-blue: #7a9dcc;
  --wisteria-blue-rgb: 122 157 204;
  --wisteria-blue-oklch: oklch(0.688 0.08 255.9);
}

.element {
  color: var(--wisteria-blue);
  background-color: hsl(214 45% 64%);
  border-color: oklch(0.688 0.08 255.9);
}

Tailwind CSS v4

@theme {
  --color-wisteria-blue: #7a9dcc;
  --color-wisteria-blue-50: #e7f6ff;
  --color-wisteria-blue-100: #d8e9ff;
  --color-wisteria-blue-200: #c0d6f7;
  --color-wisteria-blue-300: #9eb9e1;
  --color-wisteria-blue-400: #7fa1ce;
  --color-wisteria-blue-500: #6288bb;
  --color-wisteria-blue-600: #54739e;
  --color-wisteria-blue-700: #435c7e;
  --color-wisteria-blue-800: #2f445e;
  --color-wisteria-blue-900: #202f42;
  --color-wisteria-blue-950: #0f1b2a;
}

SCSS

$wisteria-blue: #7a9dcc;
$wisteria-blue-rgb: 122, 157, 204;
$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);
}