#6F5FB9

CSS

:root {
  --simply-purple: #6f5fb9;
  --simply-purple-rgb: 111 95 185;
  --simply-purple-oklch: oklch(0.544 0.137 289.2);
}

.element {
  color: var(--simply-purple);
  background-color: hsl(251 39% 55%);
  border-color: oklch(0.544 0.137 289.2);
}

Tailwind CSS v4

@theme {
  --color-simply-purple: #6f5fb9;
  --color-simply-purple-50: #f5efff;
  --color-simply-purple-100: #e7e1ff;
  --color-simply-purple-200: #d4caff;
  --color-simply-purple-300: #b8abf8;
  --color-simply-purple-400: #9d90e9;
  --color-simply-purple-500: #8574da;
  --color-simply-purple-600: #7162b8;
  --color-simply-purple-700: #5a4e94;
  --color-simply-purple-800: #40396f;
  --color-simply-purple-900: #2c274e;
  --color-simply-purple-950: #191534;
}

SCSS

$simply-purple: #6f5fb9;
$simply-purple-rgb: 111, 95, 185;
$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);
}