#6F5BC8

CSS

:root {
  --simply-purple: #6f5bc8;
  --simply-purple-rgb: 111 91 200;
  --simply-purple-oklch: oklch(0.546 0.163 288.2);
}

.element {
  color: var(--simply-purple);
  background-color: hsl(251 50% 57%);
  border-color: oklch(0.546 0.163 288.2);
}

Tailwind CSS v4

@theme {
  --color-simply-purple: #6f5bc8;
  --color-simply-purple-50: #f4eeff;
  --color-simply-purple-100: #e7dfff;
  --color-simply-purple-200: #d3c9ff;
  --color-simply-purple-300: #b7a8ff;
  --color-simply-purple-400: #9b8cf8;
  --color-simply-purple-500: #846eea;
  --color-simply-purple-600: #705ec5;
  --color-simply-purple-700: #594b9e;
  --color-simply-purple-800: #3f3777;
  --color-simply-purple-900: #2c2654;
  --color-simply-purple-950: #191339;
}

SCSS

$simply-purple: #6f5bc8;
$simply-purple-rgb: 111, 91, 200;
$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);
}