White is not a wavelength of light, it's a mixture of different spectral colors that our brain then perceives as white.

白色不是光的波长，它是不同光谱颜色的混合物，然后我们的大脑将其感知为白色。

While violets are spectral colors, meaning there is a single wavelength of light for various hues of “violet”, “purple” is actually a combination of blue and red.

紫罗兰是光谱颜色，这意味着“紫罗兰”的各种色相都有一个单一的光波长，而“紫色”实际上是蓝色和红色的组合。