noun, noun which may take the genitive case particle 'no'
single color; monochrome
Refers to something consisting of or using only one color. Often used in design, printing, and art contexts.
このプリンターは単色印刷しかできない。
This printer can only print in monochrome.
彼女は単色のワンピースを着ていた。
She was wearing a single-color dress.
単色 specifically means a single, monochrome color, while 一色 can also describe a place or mood being dominated by one topic.
単色 means monochrome or single-colored, the direct opposite of カラフル's many colors.
単色 means 'a single color' and can still have a pattern in that one color, whereas 無地 specifically means no pattern at all.
Compound of 単 (single) and 色 (color).