In this study, 201 colors were measured from 164 daylily species, and these colors were clustered by K-Means, and then Memphis design style colors, Chinese traditional colors and daylily colors were compared and analysed. The results show that: 93% of daylily colors are warm colors, daylily colors after clustering have similar colors with Memphis design style colors, but the contrast of daylily colors is weaker than that of Memphis style colors, and the two styles are different; five Memphis style colors after clustering have similar concepts with Chinese traditional five colors, and through the five of Chinese traditional colors, we can see the source of cultural self-confidence; some of daylily colors are very similar with Chinese traditional colors. Very similar, its display of natural beauty, social beauty, artistic beauty conveys the rich humanistic feelings such as forgetfulness, filial piety, nostalgia; the era of daylily "Sorrowless" cultural symbols have a new interpretation, daylily become one of the cultural symbols of socialist core values.
