British graphic designer Storm Thorgerson, best known for designing the iconic cover of Pink Floyd's 1973 classic album "The Dark Side of the Moon", has died aged 69, his family announced on Thursday.

More recently, Thorgerson created the artwork for records released by Scottish rockers Biffy Clyro, British stadium band Muse and Australian dance-rock outfit Pendulum.

He was a childhood friend of Pink Floyd's founding members before becoming its design chief. His most famous creation featured a prism of glass dispersing light into its component colours.

His family revealed he was surrounded by relatives and friends at the time of his death.

"He had been ill for some time with cancer though he had made a remarkable recovery from his stroke in 2003," said a family statement.

"He is survived by his mother Vanji, his son Bill, his wife Barbie Antonis and her two children Adam and Georgia."

Pink Floyd guitarist and vocalist Dave Gilmour said the artworks were "an inseparable part of our work".

"We first met in our early teens," he added. "We would gather at Sheep's Green, a spot by the river in Cambridge and Storm would always be there holding forth, making the most noise, bursting with ideas and enthusiasm. Nothing has ever really changed.

"He has been a constant force in my life, both at work and in private, a shoulder to cry on and a great friend. I will miss him."