You absolutely can combine navy and black, Dean Handspiker, vice president of design at mens suit company Indochino , said in an article HuffPost published in 2017. But the look has to be intentional and perfectly polished.

Combining a slim black turtleneck with a great-fitting navy blazer and black pants is smart and sophisticated, he said. But, if you havent considered the details, and the fit and fabrics are out of style, then it will look like you got dressed in the dark.