#705BC7

CSS

:root {
  --simply-purple: #705bc7;
  --simply-purple-rgb: 112 91 199;
  --simply-purple-oklch: oklch(0.546 0.161 288.9);
}

.element {
  color: var(--simply-purple);
  background-color: hsl(252 49% 57%);
  border-color: oklch(0.546 0.161 288.9);
}

Tailwind CSS v4

@theme {
  --color-simply-purple: #705bc7;
  --color-simply-purple-50: #f4eeff;
  --color-simply-purple-100: #e7dfff;
  --color-simply-purple-200: #d4c8ff;
  --color-simply-purple-300: #b8a8ff;
  --color-simply-purple-400: #9c8cf7;
  --color-simply-purple-500: #856ee9;
  --color-simply-purple-600: #715ec4;
  --color-simply-purple-700: #5a4b9e;
  --color-simply-purple-800: #403776;
  --color-simply-purple-900: #2c2654;
  --color-simply-purple-950: #191338;
}

SCSS

$simply-purple: #705bc7;
$simply-purple-rgb: 112, 91, 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);
}