29 October 2026International edition
Vol. I · No.
29 October 2026
AI IN FASHION
DAILY
The daily briefing on AI in the fashion business
Where fashion meets artificial intelligence.
Denim and casualwear

BLUE BLUE JAPAN

Seilin & Co. · Japan

BLUE BLUE JAPAN is a Tokyo-based clothing brand founded in 1996 under Seilin & Co. It is known for everyday garments dyed with natural indigo, including shirts, denim and sashiko coats.

Facts
Founded1996
CompanySeilin & Co.
BaseTokyo, Japan
FlagshipOKURA, Daikanyama
SignatureNatural indigo with sukumo
Websitebluebluejapan.com
Segment
Premium
Categories
MenswearWomenswearDenim
Sales channels
Own storesWholesaleE-commerce

What is BLUE BLUE JAPAN?

BLUE BLUE JAPAN is a clothing brand from Tokyo, founded in 1996 under the company Seilin & Co. It is built around Japan's indigo dyeing tradition and applies it to everyday clothing.

Products and positioning

The brand makes basic and everyday garments, including indigo-dyed shirts, denim and sashiko coats. Its signature is a pure indigo dye method using sukumo, fermented indigo leaves. The process runs from planting and harvesting through drying and fermenting to reducing the leaves into dye. The brand also hand-dyes with natural indigo and uses complementary dyes to extend its colour range.

Distribution

The flagship store OKURA in Daikanyama, Tokyo, opened in 1993, before the brand itself, and was built by staff using materials such as driftwood and discarded metal. It also stocks selected overseas goods. BLUE BLUE JAPAN is also sold internationally through retailers such as SSENSE and HBX, and has appeared at Harvey Nichols in London.

Why it matters

BLUE BLUE JAPAN is a leading example of Japanese brands that turn traditional craft dyeing into contemporary casualwear, introducing indigo to new generations of customers in Japan and abroad.

Frequently asked questions

Where is BLUE BLUE JAPAN from?

BLUE BLUE JAPAN is a Tokyo-based brand founded in 1996 under Seilin & Co.

What is BLUE BLUE JAPAN known for?

The brand is known for everyday clothing dyed with natural indigo, such as shirts, denim and sashiko coats.

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