一套《水乡古镇》邮票以独特的中国水墨画的形式,展示了一个黑、白、灰的色彩世界,令人耳目一新。在色彩理论中,与赤橙黄绿青蓝紫不同的是,黑、白、灰属于无色系统的色彩。因它能对色调起调和作用,又称“补助色”,又叫“消色”、“极度色”、“中性色”。纯白、纯黑色不易找到,光带里无此色彩,故白色又称“赤外色”,黑色又称“紫外色”。 A set of “Water Town” stamps in the form of a unique Chinese ink painting, showing a black, white, gray color world, refreshing. In color theory, unlike red, yellow, green, blue and purple, black, white, and gray belong to the colorless system. Because it can tone the tone and role, also known as “subsidy color”, also known as “achromatic”, “extreme color”, “neutral color.” Pure white, pure black is not easy to find, no such color with light, so the white, also known as “red color”, black, also known as “UV.”