What does the purple color mean in Maneki Neko?

I'm curious to know, could you please explain what the significance of the purple color is in the Maneki Neko figurine? I've heard that these lucky cats come in various hues, each with its own meaning, and I'm particularly intrigued by the symbolism behind the purple variant. Is it associated with prosperity, good fortune, or perhaps something else entirely? I'd appreciate your insights on this fascinating topic.