#745EB5

CSS

:root {
  --simply-purple: #745eb5;
  --simply-purple-rgb: 116 94 181;
  --simply-purple-oklch: oklch(0.544 0.133 293.1);
}

.element {
  color: var(--simply-purple);
  background-color: hsl(255 37% 54%);
  border-color: oklch(0.544 0.133 293.1);
}

Tailwind CSS v4

@theme {
  --color-simply-purple: #745eb5;
  --color-simply-purple-50: #f7eeff;
  --color-simply-purple-100: #eae0ff;
  --color-simply-purple-200: #d8caff;
  --color-simply-purple-300: #bcaaf4;
  --color-simply-purple-400: #a28ee5;
  --color-simply-purple-500: #8b72d5;
  --color-simply-purple-600: #7561b4;
  --color-simply-purple-700: #5e4e90;
  --color-simply-purple-800: #43396c;
  --color-simply-purple-900: #2e274c;
  --color-simply-purple-950: #1b1532;
}

SCSS

$simply-purple: #745eb5;
$simply-purple-rgb: 116, 94, 181;
$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);
}