There is a standard measuring instrument for the color of salmon-flesh. The SalmoFan!: https://www.dsm.com/markets/anh/en_US/products/products-solutions/product

There is a standard measuring instrument for the color of salmon-flesh. The SalmoFan!: https://www.dsm.com/markets/anh/en_US/products/products-solutions/products_solutions_tools/Products_solutions_tools_salmon.html https://www.dsm.com/markets/anh/en_US/products/products-solu... > DSM has studied consumer preferences regarding the flesh color of salmon. Our research shows that dark-colored salmon flesh consistently commands a premium. Typically bought by more affluent groups, it can command an additional USD 0.50 to USD 1.00 per pound when offered side-by-side with light-colored salmon flesh. > Light-colored salmon attracts a different consumer demographic, being more frequently purchased by minority groups than dark-colored salmon.