The purpose of the study was to assess the components of colour of muscle tissue, fat tissue, connective tissue and smoked surface of the pork loin, as an example of functional pork product. The influence of chosen factors - forage and packaging, on the analysed components of colour was also assessed. The influence of standard forage and forage with addition of 1,0mg of selenium per kg of forage were compared in case of loin packed into conventional packaging, vacuum packaging and modified atmosphere packaging (70% N2 and 30% CO2, 40% N2 and 60% CO2). Using computer image analysis, the components of colour were assessed in the RGB colour system. It was concluded, that analysed combined factors influence the colour of muscle tissue, fat tissue and smoked surface of the pork loin, but do not influence the colour of connective tissue. Applying properly chosen packaging technologies in case of selenium-enriched pork functional products, may create desired colour of product.