The story
ICI Paints was formed in 1926. The Dulux paint brand was introduced in 1931. The name Dulux is derived from the words Durable and Luxury.
In the early days of its existence, decorators and their suppliers were the main customers for Dulux, with Say Dulux to your decorator used as an advertising slogan in the 1950s. By 1953, Dulux was available in the retail market and ten years later an Old English Sheepdog was used in advertisements, to the point where "Dulux dog" has become a common nickname for the breed.
Dulux had a market share in the United Kingdom of around 25 percent according to research by Kantar Group.
From Wikipedia’s article on Dulux, shared under CC BY-SA 4.0.3