#695EC3

CSS

:root {
  --simply-purple: #695ec3;
  --simply-purple-rgb: 105 94 195;
  --simply-purple-oklch: oklch(0.543 0.152 285.1);
}

.element {
  color: var(--simply-purple);
  background-color: hsl(247 46% 57%);
  border-color: oklch(0.543 0.152 285.1);
}

Tailwind CSS v4

@theme {
  --color-simply-purple: #695ec3;
  --color-simply-purple-50: #f1efff;
  --color-simply-purple-100: #e4e1ff;
  --color-simply-purple-200: #cfcbff;
  --color-simply-purple-300: #b2abff;
  --color-simply-purple-400: #968ff4;
  --color-simply-purple-500: #7e73e5;
  --color-simply-purple-600: #6b62c1;
  --color-simply-purple-700: #554e9b;
  --color-simply-purple-800: #3c3975;
  --color-simply-purple-900: #292752;
  --color-simply-purple-950: #171537;
}

SCSS

$simply-purple: #695ec3;
$simply-purple-rgb: 105, 94, 195;
$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);
}