monoketone

例句：

1. 1.The monochrome tone of the painting creates a sense of calmness.
   这幅画的单色调给人一种宁静的感觉。
2. 2. The monochrome tone is often used in advertising to convey a sense of professionalism.
   单色调在广告中常用来传达一种专业感。
3. 3.The monochrome tone was chosen to create a minimalist aesthetic.
   选择了单色调来创造极简主义美学。