What is webpage Security Color and 216 webpage Security color?

After learning about "Digital colors", we will know that the colors on the web page will be affected by various environments. Even if your webpage uses a very reasonable and beautiful color scheme, if you see different effects during browsing, then, your willingness to use the color scheme cannot be well communicated to the viewer.

So how can we solve this problem?

The answer is-216 webpage Security color.

216 webpage Security Color refers to the color set (color palette) that can be normally displayed in different hardware environments, operating systems, and browsers ), that is to say, the actual effects of these colors on User display devices on any terminal are the same. Therefore, the use of 216 web page Security Color for web page color can avoid the original color distortion problem.
The Network Security color is when the red, green, blue color digital signal value (DAC count) A color combination consisting of 0, 51, 102, 153, 204, and 255. It has a total of 6*6*6 = 216 colors (where the color is 210, 6 ).