#6F5DC0

CSS

:root {
  --simply-purple: #6f5dc0;
  --simply-purple-rgb: 111 93 192;
  --simply-purple-oklch: oklch(0.544 0.149 288.8);
}

.element {
  color: var(--simply-purple);
  background-color: hsl(251 44% 56%);
  border-color: oklch(0.544 0.149 288.8);
}

Tailwind CSS v4

@theme {
  --color-simply-purple: #6f5dc0;
  --color-simply-purple-50: #f4efff;
  --color-simply-purple-100: #e7e0ff;
  --color-simply-purple-200: #d4caff;
  --color-simply-purple-300: #b7aafe;
  --color-simply-purple-400: #9c8ef0;
  --color-simply-purple-500: #8571e1;
  --color-simply-purple-600: #7060be;
  --color-simply-purple-700: #5a4d99;
  --color-simply-purple-800: #403873;
  --color-simply-purple-900: #2c2751;
  --color-simply-purple-950: #191436;
}

SCSS

$simply-purple: #6f5dc0;
$simply-purple-rgb: 111, 93, 192;
$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);
}