Synthetic violet is a term used to describe a shade of purple that is created using synthetic dyes or pigments. Some synonyms for synthetic violet include lavender, lilac, mauve, and amethyst. These shades of purple differ slightly in their hue and saturation, but all fall within the range of synthetic violet. Lavender is a light, pale purple that often has a slightly gray or blue undertone. Lilac is a soft, pinkish hue of purple. Mauve is a muted, dusty shade of purple that has a slight pink or taupe undertone. Amethyst is a deep, rich hue of purple that often has a reddish undertone.