Translation guide
Describes the color dark grey. In Japanese, this is commonly expressed with 濃い灰色 (koi haiiro) or ダークグレー (dāku gurē). The word 鼠色 (nezumiiro) means 'grey' and can be modified with 濃い (koi) for 'dark'. Loanword グレー (gurē) is also widely used.
Describe something as dark grey in color.
Literally 'dark grey'. 濃い (koi) means 'dark/deep' and 灰色 (haiiro) means 'grey'. This is a natural, descriptive phrase.
彼は濃い灰色のスーツを着ていた。
He was wearing a dark grey suit.
空が濃い灰色になった。
The sky turned dark grey.
When describing a color as 'dark', use 濃い (koi) for deep or intense shades (e.g., 濃い青 dark blue). Use 暗い (kurai) when the color appears dim or lacking light (e.g., 暗い部屋 dark room). For grey, 濃い灰色 is standard; 暗い灰色 emphasizes a gloomy, dim grey.
Loanword from English 'dark grey'. Very common in fashion, design, and everyday conversation.
ダークグレーのカーディガンを買った。
I bought a dark grey cardigan.
Uses 鼠色 (nezumiiro), a traditional Japanese word for grey (literally 'mouse color'). 濃い鼠色 means 'dark mouse color', i.e., dark grey. Slightly more traditional/literary feel.
着物は濃い鼠色だった。
The kimono was dark grey.
Literally 'dark/dim grey'. 暗い (kurai) means 'dark' in the sense of lacking light. Can be used but 濃い灰色 is more common for color depth.
暗い灰色の雲が広がった。
Dark grey clouds spread out.
Traditional Japanese color name, literally 'dull color', referring to a dark greyish tone. Used in arts, crafts, or poetic contexts.
鈍色の空が冬の訪れを告げていた。
The dark grey sky heralded the arrival of winter.