Just call her the Duchess of Darkness.

Elvira had a cheeky response to Meghan Markle after the As Ever founder recounted a traumatizing time she dyed her hair an unflattering shade.

Markle, 43, revealed that, during the height of the COVID-19 pandemic, she turned to box hair dye for a touch-up — with disastrous results.

“I thought, ‘I’m going to look just like she does on the box,’” Markle said in the April 22 episode of her podcast, “Confessions of a Female Founder.”

“It was this very inky, almost Elvira-esque black hair,” the actress added, explaining that she immediately contacted her wedding-day hairstylist Serge Normant and was referred to hair guru Kadi Lee, who was a guest on the podcast.

Cassandra Peterson, who played the horror character, saw the clip — and offered her services to the royal.

“Hey princess, if you ever need beauty advice from a queen just let me know 😏,” she captioned an Instagram post alongside a screenshot of an article about the situation.

One fan commented, “She wishes she looked like Elvira” while another said, “She should be so lucky.”

A third, however, thought of a good solution. “I hope she sees this and invites you on her show to do Halloween special! 👏🏽 🦇 Love you both!,” they said.

Elvira has a history of getting into it with celebs; in 2024, she called out Ariana Grande as the worst interaction she’s had, claiming the “We Can’t Be Friends” singer snubbed her at a meet and greet.

Meanwhile, the queen of scream had some issues when Kylie Jenner dressed as her for Halloween. “I didn’t get a heads up that Kylie was doing the costume, but she did the costume justice and it was very flattering,” Elvira said of the transformation. “It would have been even more flattering if she tagged me.”