#745CBD

CSS

:root {
  --simply-purple: #745cbd;
  --simply-purple-rgb: 116 92 189;
  --simply-purple-oklch: oklch(0.545 0.147 292.2);
}

.element {
  color: var(--simply-purple);
  background-color: hsl(255 42% 55%);
  border-color: oklch(0.545 0.147 292.2);
}

Tailwind CSS v4

@theme {
  --color-simply-purple: #745cbd;
  --color-simply-purple-50: #f7eeff;
  --color-simply-purple-100: #eadfff;
  --color-simply-purple-200: #d7c9ff;
  --color-simply-purple-300: #bca8fb;
  --color-simply-purple-400: #a18ded;
  --color-simply-purple-500: #8a70de;
  --color-simply-purple-600: #755fbb;
  --color-simply-purple-700: #5e4c96;
  --color-simply-purple-800: #433771;
  --color-simply-purple-900: #2e2650;
  --color-simply-purple-950: #1b1435;
}

SCSS

$simply-purple: #745cbd;
$simply-purple-rgb: 116, 92, 189;
$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);
}