What is Suōkō? An explanation of the origin, history, and color scheme of this traditional Japanese color.

Japanese Color Encyclopedia
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蘇芳香の色見本 HEX #A86965
Japanese color name Suoka
reading suoukoh
HEX #A86965
RGB 168, 105, 101
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What is Suōkō? Origin and etymology

Suōkō is a color whose name is a combination of "suō," a dye, and "kō," a fragrance. Suō is a leguminous plant native to India and the Malay Peninsula, and a red dye is extracted from its heartwood. It was a valuable dye that had been imported since ancient times and was treated as a noble color. On the other hand, "kō" refers to fragrances such as cloves and sandalwood.

It is believed that this name originated from the fact that these fragrances were mixed in when dyeing with sappanwood, or that incense was burned onto the dyed cloth.

The resulting color is a slightly muted reddish-brown, created by the addition of brown pigments derived from spices such as cloves to the reddish hue of sappanwood. Distinguishing itself from simple sappanwood dyeing, this color name reflects the elegant aesthetic sensibilities of the Heian aristocracy, who appreciated not only the color but also the fragrance. This color, appealing to both sight and smell, symbolized the sophistication of the culture of that era.

Historical background of sappanwood

Although dyeing with sappanwood had been practiced since the Nara period, the color name "sappanwood" and the dyeing method were established during the Heian period. The Engishiki, a collection of laws compiled in the mid-Heian period, specifically describes the dyeing method for "sappanwood," which involves adding cloves and betel nut to sappanwood, as a regulation of the Nuidono-tsukasa, the Imperial Household Agency responsible for dyeing and weaving in the palace. This indicates that sappanwood was an officially designated color.

In the aristocratic society of the Heian period, the culture of "incense infusion," where clothing was infused with fragrance, was highly valued. Suo-ko (a type of sappanwood) embodied this refined custom, as it combined color and fragrance. Therefore, it was particularly favored among high-ranking nobles and became established as a dignified color used in their attire and furnishings.

Related literature, waka poetry, and seasonal words

The sappanwood color also appears in "The Tale of Genji," a masterpiece of Heian literature. For example, in the chapter "The Autumn Leaves," the color of the clothing worn by Hikaru Genji is described as "sappanwood," and it is effectively used as a color that enhances the elegance and beauty of the protagonist. This description suggests that sappanwood was an object of admiration for people at that time.

Furthermore, in Sei Shōnagon's "The Pillow Book," "sappanwood fabric" is listed as an example of "elegant things" (things of high quality or nobility). Although it doesn't directly mention "sappanwood incense," considering the aesthetic sense of the Heian aristocracy, which placed great importance on fragrance, it is highly probable that this description also refers to sappanwood incense. Through these literary works, it can be seen that sappanwood incense was an important color symbolizing Heian culture.

Color scheme preview

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Color scheme proposal for Suou-ko

Suoka
clove color
White training
Light green

Clove color (#B4866B)

This color combination, named after cloves (which were also used as a dye for sappanwood), is a muted, warm color scheme that shares a historical background, resulting in an elegant and calm color combination that evokes a sense of narrative. It has a sense of unity and gives a gentle and intellectual impression.

White training (#FFFFFF)

When paired with pure white, the depth and redness of the sappanwood color stand out, creating a dignified impression. This classic and elegant color scheme is reminiscent of the "layered colors" seen in Heian period attire. The contrast is beautiful, and each color enhances the others.

Light green (#A9D159)

The reddish-brown sappanwood and the vibrant, fresh green of young leaves are almost complementary colors, enhancing the vibrancy of each other. This color scheme evokes both vitality and tranquility, creating a classic yet fresh and elegant impression. It's a combination reminiscent of the colors of nature.

Practical Scenes

In traditional Japanese clothing, when used in formal kimonos, solid-colored kimonos, and obi sashes, sappanwood (suzōkō) creates an elegant impression that is both subdued and splendid. It is particularly well-suited to the autumn season and pairs exceptionally well with classic patterns. Its deep hue enhances the wearer's dignity and creates a refined look.

In interior design, incorporating sappanwood as an accent color brings warmth and a sense of depth to a space. Using it in cushions, rugs, or parts of wallpaper can create a calm, modern Japanese atmosphere. It harmonizes particularly well with wooden furniture and off-white fabrics.

In the fields of web design and graphic design, sappanwood is suitable for expressing a sense of luxury, tradition, and reliability. It can be used as a key color to effectively convey the worldview of websites dealing with traditional crafts, websites of long-established brands, and content with historical themes.

FAQ

❓ What is the difference between the scent of sappanwood and the color of sappanwood?
Suou-iro refers to the red or dark reddish-purple color obtained by dyeing with dye extracted from the sappanwood tree. On the other hand, sappanwood fragrance is a color obtained by adding fragrances such as cloves when dyeing with sappanwood, or by burning incense after dyeing, resulting in a more brownish, dull reddish-brown color. As the name suggests, it is closely associated with fragrance.
❓ What social class of person used the color sappanwood?
During the Heian period, sappanwood, the raw material for this dye, was a precious dye that had to be imported. Therefore, sappanwood was primarily used by people of high status, such as the emperor and court nobles. The fact that the dyeing method was prescribed in the Engishiki (a historical document) shows that it was treated as a color of high status.
❓ How is sappanwood used in modern times?
In modern times, these colors are preserved in traditional fields such as kimonos, obi sashes, and Japanese accessories. Furthermore, these subdued colors are utilized in various fields, including as accent colors in interior design, in Japanese-style designs, and in product packaging where a sense of luxury is desired.

Japanese colors similar to sappanwood

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