No, Duralex is not the same as Pyrex.
Duralex is a French company that has been making tempered glassware since 1945. Their products are made of a type of glass called soda-lime, which is different from the borosilicate glass used to make Pyrex. While Duralex glasses are mostly clear, they do offer some products with colored tints.
Pyrex is a brand name owned by Corning Inc., which also manufactures other types of glass and ceramic products. The Pyrex brand was introduced in 1915 and originally referred to borosilicate glass kitchenware that could withstand high temperatures without breaking. In 1998, Corning sold the Pyrex brand to World Kitchens LLC, which now produces both borosilicate and soda-lime glass bakeware under the Pyrex name.