#6D5CC6

CSS

:root {
  --simply-purple: #6d5cc6;
  --simply-purple-rgb: 109 92 198;
  --simply-purple-oklch: oklch(0.545 0.159 287.3);
}

.element {
  color: var(--simply-purple);
  background-color: hsl(250 48% 57%);
  border-color: oklch(0.545 0.159 287.3);
}

Tailwind CSS v4

@theme {
  --color-simply-purple: #6d5cc6;
  --color-simply-purple-50: #f3eeff;
  --color-simply-purple-100: #e6e0ff;
  --color-simply-purple-200: #d2c9ff;
  --color-simply-purple-300: #b5a9ff;
  --color-simply-purple-400: #9a8df6;
  --color-simply-purple-500: #8270e8;
  --color-simply-purple-600: #6e5fc4;
  --color-simply-purple-700: #584c9d;
  --color-simply-purple-800: #3e3876;
  --color-simply-purple-900: #2b2653;
  --color-simply-purple-950: #191438;
}

SCSS

$simply-purple: #6d5cc6;
$simply-purple-rgb: 109, 92, 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);
}