Color Models Explained

Color Models Explained

颜色模型就是一种给颜色编号的规则（规定一些Primary Colors和Second Colors等）以及支持的所有颜色的编号。
颜色模型中有编号的全部颜色的集合就是该颜色模型的颜色空间。(Color Space)

Because there’s a whole world of color, and color is just too complicated and nuanced to be summed up with a single color model!

The different color models apply to different uses of color, such as print, on digital screens, and in pigments. Knowing the differences can make all the difference for whatever colorful project you’re about to tackle.

There are two main categories of color models: subtractive and additive. An additive color model (like the RGB model) is based on transmitting light. Subtractive color models (like CMYK) are based on reflected light.
颜色模型主要有两个门类：减色和加色。加色模型（如RGB模型）基于透射光，减色模型（如CMYK模型）基于反射光。

Each color model is used for something different, which is why it’s important to know which one applies.
这句话比较重要：不同的颜色模型用在一些不同的东西上面，因此要搞清楚哪些场合该用什么颜色模型。

 RYB

The RYB is also known as the “traditional color” wheel. It’s the color model we all learned about in school. This subtractive color model is used when mixing pigments and has most of its applications in painting, art, and interior design.

 RGB

When you’re working with screen-based designs and colors, you’ll want to use this additive color model: RGB model.

This system uses the sRGB color space and has practical limitations that prevent it from making all visible colors—it makes 16,777,216 colors instead.

It starts with a blank black canvas (the display screen of any digital device like a TV, phone, or tablet), then mixes light to show color on the screen. To create white, you have to blend all primary colors in equal measure.

For that reason, televisions or computers only need to produce mixtures of red, green, and blue light. （透射光）