What's the opposite colour of white?

与白色相对的颜色是什么？

youdao

The capsules are arranged as pixels and electric charges applied to each pixel pull either the black or the white particles towards the top of the capsule (and the opposite colour to the bottom).

这些胶囊按照像素排列，电荷会作用于每个像素点上，将白色或者黑色的粒子拉到胶囊的顶部（同时，那些相反的颜色会被排斥到底部）。

youdao

The capsules are arranged as pixels and electric charges applied to each pixel pull either the black or the white particles towards the top of the capsule (and the opposite colour to the bottom).

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