#715AC7

CSS

:root {
  --simply-purple: #715ac7;
  --simply-purple-rgb: 113 90 199;
  --simply-purple-oklch: oklch(0.545 0.163 289.6);
}

.element {
  color: var(--simply-purple);
  background-color: hsl(253 49% 57%);
  border-color: oklch(0.545 0.163 289.6);
}

Tailwind CSS v4

@theme {
  --color-simply-purple: #715ac7;
  --color-simply-purple-50: #f5eeff;
  --color-simply-purple-100: #e8dfff;
  --color-simply-purple-200: #d5c8ff;
  --color-simply-purple-300: #b9a8ff;
  --color-simply-purple-400: #9e8bf7;
  --color-simply-purple-500: #876de9;
  --color-simply-purple-600: #725dc4;
  --color-simply-purple-700: #5b4a9e;
  --color-simply-purple-800: #413677;
  --color-simply-purple-900: #2c2554;
  --color-simply-purple-950: #1a1338;
}

SCSS

$simply-purple: #715ac7;
$simply-purple-rgb: 113, 90, 199;
$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);
}