A new book on the Royal family claims Camilla, the Duchess of Cornwall, asked Harry and Meghan if son Archie would have a "ginger afro."
Biographer Tom Bower says Camilla made the comments as a joke.
Bower's unauthorised book Revenge: Meghan, Harry and the War between the Windsors purports to explore an alleged rift between the Duke and Duchess of Sussex and other members of the Royal family.
However, UK newspaper The Mirror quoted sources who dismissed the claims as just "nonsense."
There's been no official comment from the Duchess of Cornwall's spokesperson about the comment.
It's not the first time accusations have swirled around the Royal family and the birth of Meghan and Harry's son, Archie.
In March 2021, during a tell-all interview with Oprah Winfrey, Meghan Markle revealed there were concerns about Archie's skin colour, given his parents were of mixed-race.
"In those months when I was pregnant, all around this same time, so we have in tandem the conversation that he won't be given security, he's not going to be given a title, and also concerns and conversations about how dark his skin might be when he's born," she said.
Buckingham Palace responded two days after the interview aired and publicly stated the accusations would be taken very seriously and would be addressed by the family in private.
"The whole family is saddened to learn the full extent of how challenging the last few years have been for Harry and Meghan. The issues raised, particularly that of race, are concerning," the statement read.