It is important for designing of a garment to know how color and silhouette of the garment contribute to the presentation of the garment image. In this report, the impressions of garments were investigated for various combinations of colors and silhouettes. A color simulator was used to change the colors of various fashion dresses. The data obtained were evaluated using SD method, then, factor analysis and Hayashi's quantification scaling type 1 were applied. The results are summarized as follows : The visual impressions of fashion dresses are composed of four factors : evaluation, functionalism, lightness and warmth. The factors of the evaluation and lightness are influenced by both color and silhouette. The factor of functionalism is influenced by silhouette and one of warmth by color.