Background If you notice that you have to fill your car while driving, you have to find a filling station. And you can distinguish by the color before you read the letter on the sign. People can recognize color faster than they can read text. So, today, color is used in the whole industry as color marketing, color therapy, color psychology and so on. And color is actively discussed and studied today. However, there is a lack of research on relationship between color and words. Because, both color and words have referential meaning, they are often in semantic conflict with each other. People can distinguish the meaning of the words “man” and “woman,” they can also distinguish the color red and the color blue on the wall in front of a toilet. Therefore, when you are faced with woman written in blue, and man written in red, you must be confused about it for a moment. Although this makes the experiment about color and text difficult, it is interesting for me. Therefore, I plan to find emotional differences between words written by practiced color and inverted color. Methods For the study, I establish three research problems as follows. 1) Which is more preferred, a word sample written by practiced color or written by inverted color? 2) Are there differences in preference between adult groups and children group? 3) Are there emotional differences when people watch word samples written by practiced color and written by inverted color? First, I made ten words samples, Five of which are company names and others were common nouns. The company names were Samsung, Hanabank, Naver, LG, e-mart, which have their symbol colors. I also made word samples from the common nouns are strawberry, star, cucumber, orange, and sky. Each word sample was printed in both practiced color and inverted color. Second, I identified two groups of participants, one comprised of people over the age of 19, and the other comprised of children under the age of 8 years. Third, I investigate the preference between words sample written in two differences colors. Fourth, I measure the differences in feelings through the Semantic Differential Method. Result The ESCO stakeholders have highly diverse needs which are often interdependent and conflicting. A new PSS thus aimed at addressing the identified needs, and simultaneously achieving economic feasibility and environmental sustainability. Its economic feasibility was validated through a field test. Result Based on the results of a preference survey for questions 1 and 2, both of the adult group and the kids are prefer words written by practiced color. More than 80% of participants are chose practiced colored words in the case of the common proper nouns' samples. However, the adult group preferred the practiced colored sample and the kids group in preferred the sample of company names.' Results from the Semantic Differential Method for question 3, I allow me to can make a graph which that reflects sensibility evaluation. Although the sample word is the same, the feeling is different according to the written color. Conclusion Results-from the Semantic Differential Method for question 3 show us that color can give various meanings to words. We can try more detailed communication by using color and words. The color of words influences preference because color has a referential function. Thus, if we want to gain good filling through text message, we would have to choose the color of words carefully.