#7E95F8

CSS

:root {
  --wisteria-blue: #7e95f8;
  --wisteria-blue-rgb: 126 149 248;
  --wisteria-blue-oklch: oklch(0.696 0.148 272.2);
}

.element {
  color: var(--wisteria-blue);
  background-color: hsl(229 90% 73%);
  border-color: oklch(0.696 0.148 272.2);
}

Tailwind CSS v4

@theme {
  --color-wisteria-blue: #7e95f8;
  --color-wisteria-blue-50: #e8f3ff;
  --color-wisteria-blue-100: #d8e5ff;
  --color-wisteria-blue-200: #c0d0ff;
  --color-wisteria-blue-300: #a0b1ff;
  --color-wisteria-blue-400: #8197f5;
  --color-wisteria-blue-500: #667ce7;
  --color-wisteria-blue-600: #5669c2;
  --color-wisteria-blue-700: #45549c;
  --color-wisteria-blue-800: #2f3e75;
  --color-wisteria-blue-900: #202a53;
  --color-wisteria-blue-950: #101737;
}

SCSS

$wisteria-blue: #7e95f8;
$wisteria-blue-rgb: 126, 149, 248;
$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);
}