noun, noun which may take the genitive case particle 'no'
A gray color like that of a mouse or rat; a common color term in everyday Japanese.
彼はねずみ色のスーツを着ていた。
He was wearing a dark gray suit.
空がねずみ色に曇ってきた。
The sky has clouded over to a slate gray.
鼠 alone cannot be used to mean the color 'gray'; ねずみ色 is the complete word you actually say or write for that shade.
灰色 is the general, everyday word for grey, whereas 鼠色 is a traditional, more specific term for a darker, muted grey (literally 'mouse color').
ねずみ色 is a traditional Japanese term for a warm, dark gray, while グレー is the modern, more neutral loanword for the color.
Common kana-kanji mixed spelling; the animal name is usually written in kana.
Kanji spelling using the character for 'mouse/rat'; less common but still seen.
Katakana variant of the animal part; search-only form.
Compound of ねずみ (mouse/rat) and 色 (color), literally 'mouse color'.