#7D56C6

CSS

:root {
  --simply-purple: #7d56c6;
  --simply-purple-rgb: 125 86 198;
  --simply-purple-oklch: oklch(0.55 0.168 296.5);
}

.element {
  color: var(--simply-purple);
  background-color: hsl(261 50% 56%);
  border-color: oklch(0.55 0.168 296.5);
}

Tailwind CSS v4

@theme {
  --color-simply-purple: #7d56c6;
  --color-simply-purple-50: #fbebff;
  --color-simply-purple-100: #efdcff;
  --color-simply-purple-200: #ddc5ff;
  --color-simply-purple-300: #c3a3ff;
  --color-simply-purple-400: #a986f5;
  --color-simply-purple-500: #9368e6;
  --color-simply-purple-600: #7c58c2;
  --color-simply-purple-700: #64469c;
  --color-simply-purple-800: #473376;
  --color-simply-purple-900: #312353;
  --color-simply-purple-950: #1e1138;
}

SCSS

$simply-purple: #7d56c6;
$simply-purple-rgb: 125, 86, 198;
$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);
}