IPA: /ˈjuːnɪkɔːr/
KK: /ˈjunɪˌkɔr/
Having only one color; not mixed with any other colors.
The artist chose a unicolor palette for the painting to create a striking effect.
Unicolor → It is formed from "uni-" (meaning one) and "color" (from Latin "color", meaning hue or tint). The word "unicolor" means having one color or being of a single hue.
Think of 'one' ('uni-') color — that's why unicolor means something that is of a single color.