The purpose of this study is to clarify and confirm previous research and expand the knowledge in this research area, since the majority of the information and knowledge that is available today is mostly repetitive. The theoretical frame of this study is based on theories, such as Theory of Reasoned Action (Fishbein, M. & Ajzen, I. 1967), alongside previous research done in this research area. The previous research consists of, among other things, analysed associations with the six different colours that this study also emphasizes. The theoretical synthesis is based on the deductive process; meaning, the authors of this survey have collected data and by observing this data, the authors determine whether these theories and previous researchers' arguments can be confirmed or not. Since this survey is based on a qualitative research method, the data collection for this study was executed through focus group interviews. The authors of this survey interviewed three focus groups with various participants in each focus group. Considering that this study focuses on the consumer and its behavior in the grocery store, the researchers selected interviewees who themselves are consumers and who regularly shop in the grocery store. In conclusion, the participants in the focus group interviews confirm that colour associations have an impact on their buying behavior in grocery stores.