#755EB4

CSS

:root {
  --simply-purple: #755eb4;
  --simply-purple-rgb: 117 94 180;
  --simply-purple-oklch: oklch(0.544 0.131 293.9);
}

.element {
  color: var(--simply-purple);
  background-color: hsl(256 36% 54%);
  border-color: oklch(0.544 0.131 293.9);
}

Tailwind CSS v4

@theme {
  --color-simply-purple: #755eb4;
  --color-simply-purple-50: #f8eeff;
  --color-simply-purple-100: #ebe0ff;
  --color-simply-purple-200: #d9c9ff;
  --color-simply-purple-300: #bdaaf3;
  --color-simply-purple-400: #a38ee4;
  --color-simply-purple-500: #8c72d4;
  --color-simply-purple-600: #7661b3;
  --color-simply-purple-700: #5f4d90;
  --color-simply-purple-800: #44396c;
  --color-simply-purple-900: #2f274c;
  --color-simply-purple-950: #1c1532;
}

SCSS

$simply-purple: #755eb4;
$simply-purple-rgb: 117, 94, 180;
$simply-purple-light: mix(#fff, $simply-purple, 20%);
$simply-purple-dark: mix(#000, $simply-purple, 20%);

.element {
  color: $simply-purple;
  box-shadow: 0 0 0 2px rgba($simply-purple, 0.35);
}