#745AC3

CSS

:root {
  --simply-purple: #745ac3;
  --simply-purple-rgb: 116 90 195;
  --simply-purple-oklch: oklch(0.546 0.158 291.7);
}

.element {
  color: var(--simply-purple);
  background-color: hsl(255 47% 56%);
  border-color: oklch(0.546 0.158 291.7);
}

Tailwind CSS v4

@theme {
  --color-simply-purple: #745ac3;
  --color-simply-purple-50: #f7edff;
  --color-simply-purple-100: #eadfff;
  --color-simply-purple-200: #d7c8ff;
  --color-simply-purple-300: #bba7ff;
  --color-simply-purple-400: #a18bf3;
  --color-simply-purple-500: #8a6de4;
  --color-simply-purple-600: #755dc0;
  --color-simply-purple-700: #5d4a9b;
  --color-simply-purple-800: #433674;
  --color-simply-purple-900: #2e2552;
  --color-simply-purple-950: #1b1337;
}

SCSS

$simply-purple: #745ac3;
$simply-purple-rgb: 116, 90, 195;
$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);
}