A high-end interior design company has said it “can neither confirm nor deny” rumours of pink paint samples sent to the Duchess of Cambridge.

Reports circulated on Saturday that Annie Sloan, in Cowley Road, supplied three paint samples to Anmer Hall, the house on the Queen’s Sandringham currently occupied by Kate Middleton and Prince William.

The chosen colours – Henrietta, a “beautiful rich complex pink with a hint of lilac”; Antoinette, a “soft pale pink with a hint of brown”; and Emile, a “warm soft aubergine colour with pink and red undertones” further stoked rumours that the Royal couple are expecting a girl this month.