| Japanese color name | Dark blue |
|---|---|
| reading | koiai |
| HEX | #002E4E |
| RGB | 0, 46, 78 |
What is "dark indigo"? Origin and etymology.
Dark indigo is a dye made by fermenting the leaves of the indigo plant (Persicaria tinctoria), and it is an extremely deep indigo color obtained by repeatedly dipping and dyeing the fabric. As the name suggests, it means "deep indigo," and it is the darkest of all indigo dyes, with a color that is close to black. Indigo dyeing involves dipping the fabric in the dye solution, removing it, and exposing it to air, which causes oxidation and develops the blue color.
Repeating this process multiple times deepens the color, creating a deep hue like dark indigo. This time-consuming dyeing technique enhances the depth and value of the color.
The historical background of dark indigo
The history of indigo dyeing is ancient, and it is believed to have been practiced in Japan since the Nara period. During the Heian period, indigo-dyed clothing was widely used among the nobility. Dark indigo, in particular, was favored by samurai due to its deep color, and it is said that it was used to dye weapons and armor during the Kamakura period. In the Edo period, with the spread of cotton, indigo dyeing became widespread in the lives of ordinary people, and indigo blue was used for all kinds of things, from work clothes and everyday wear to shop curtains.
During this period, dark indigo was also called "kachi-iro" (brown), and was particularly favored by samurai as a good luck charm for "winning" in competitions.
Related literature, waka poetry, and seasonal words
Dark indigo, with its deep hue, evokes images of night and the deep sea, and is sometimes used in literature to express stillness and solemnity. In classical literature, indigo-dyed clothing is widely depicted, worn by everyone from commoners to nobles, and poems about indigo can be found in the Manyoshu anthology. However, it is rare for the color to be specifically referred to as "dark indigo," and it is more commonly used to describe the color in a broader sense.
While "deep indigo" is not a direct seasonal word, "indigo flower" is known as an autumn seasonal word, indicating an interest in the plant used as the raw material for indigo dyeing.
Color scheme preview
This is to check the readability of the text when this color is used as the background.
Dark indigo color scheme proposal
White training (#F3F3F3)
The combination of deep indigo and pure white evokes a sense of cleanliness and elegance. The traditional Japanese contrast of "indigo and white" is a classic color scheme seen in yukata and tenugui (hand towels), and it is highly visible, giving a dignified impression.
Golden (#E6B422)
Combining a deep indigo, reminiscent of a starry night sky, with a radiant gold, like the moon, creates a luxurious and dignified impression. This color scheme, in which each color enhances the others and achieves both a sense of weight and splendor, can also be seen in the decoration of armor and the clothing of nobles.
Hinoki bark color (#96514D)
The cool impression of deep indigo is softened by the reddish-brown of cypress bark, adding warmth. This combination of earthy colors, reminiscent of tree bark and the deep sea, brings a sense of calm and stability, creating a sophisticated Japanese-style space.
Practical Scenes
Deep indigo, with its calming and dignified appearance, is still used in a variety of settings today. In traditional Japanese clothing such as kimonos, yukatas, and samue (work clothes), it is a classic color loved by people of all genders and ages. In interior design, using it as an accent color for wallpaper, curtains, cushions, etc., can add depth and tranquility to a space.
In web and graphic design, using it as a background color enhances text and other elements, creating a sense of reliability and sophistication.