orthochrome

例句：

1. 1. The color of the dress is a perfect match for the orthochrome background.
   这件衣服的颜色与背景的正色完美匹配。
2. 2.The artist used a variety of materials to create an orthochrome painting.
   这位艺术家使用各种材料创作了一幅正色画作。
3. 3.The company's logo is designed to be easily recognized with its orthochrome color scheme.
   该公司的logo设计得易于识别，采用了其正色色彩方案。