Blue is associated with fidelity, coolness, cleanliness, and purity, and is one of the most important lucky colors in Japan. Today, the word “ao” is used to describe blue, however, in the past, it described both blue and green.
Green is another one of the lucky colors in Japan and is also associated with growth, youthfulness, fertility, and vitality. The color is popular in clothing as it represents freshness and restfulness.
Purple is a color that, as with many cultures, is associated with royalty and nobility, and common folk were not allowed to wear the color for many years. The purple color also signifies spirituality, wisdom, and luxury.
Gold is the color that represents prestige, royalty, and wealth. It is the color of the heavens and can often be found in temples and shrines. Gold threads were also often used in traditional wear like the kimono.