#775EAE

CSS

:root {
  --simply-purple: #775eae;
  --simply-purple-rgb: 119 94 174;
  --simply-purple-oklch: oklch(0.542 0.123 296.5);
}

.element {
  color: var(--simply-purple);
  background-color: hsl(259 33% 53%);
  border-color: oklch(0.542 0.123 296.5);
}

Tailwind CSS v4

@theme {
  --color-simply-purple: #775eae;
  --color-simply-purple-50: #f9eeff;
  --color-simply-purple-100: #ede0ff;
  --color-simply-purple-200: #dbc9ff;
  --color-simply-purple-300: #bfaaee;
  --color-simply-purple-400: #a68edf;
  --color-simply-purple-500: #8f73cd;
  --color-simply-purple-600: #7961ad;
  --color-simply-purple-700: #614e8b;
  --color-simply-purple-800: #453968;
  --color-simply-purple-900: #302749;
  --color-simply-purple-950: #1c1530;
}

SCSS

$simply-purple: #775eae;
$simply-purple-rgb: 119, 94, 174;
$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);
}