#775BBD

CSS

:root {
  --simply-purple: #775bbd;
  --simply-purple-rgb: 119 91 189;
  --simply-purple-oklch: oklch(0.546 0.148 294.1);
}

.element {
  color: var(--simply-purple);
  background-color: hsl(257 43% 55%);
  border-color: oklch(0.546 0.148 294.1);
}

Tailwind CSS v4

@theme {
  --color-simply-purple: #775bbd;
  --color-simply-purple-50: #f8edff;
  --color-simply-purple-100: #ecdfff;
  --color-simply-purple-200: #d9c8ff;
  --color-simply-purple-300: #bea7fb;
  --color-simply-purple-400: #a48bed;
  --color-simply-purple-500: #8d6edd;
  --color-simply-purple-600: #785ebb;
  --color-simply-purple-700: #604b96;
  --color-simply-purple-800: #443771;
  --color-simply-purple-900: #2f254f;
  --color-simply-purple-950: #1c1335;
}

SCSS

$simply-purple: #775bbd;
$simply-purple-rgb: 119, 91, 189;
$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);
}