As far as I know, there seem to be five versions of color blindness detection chart. If I have perseverance and memory, I think I can try. I did this, and I remembered the version of 0 1. Some charts are very useful.

First of all, I am green blind, more serious than you, hehe. Some graphics for detecting red-green color blindness can be used. For example, there are two numbers on the left and right, the red blind can't see the number on the left, and the green blind can't see the number on the right. Then I remember that when I saw the left 4, the right side was 6, when I saw the left 3, the right side was 0, and so on. In addition, some pictures are skillful. For example, color-blind and weak pictures see deer, while normal people see cows. Others, such as a normal person with color blindness and weak color, see 1327 is 4284. These can all be leaned back. Others are really helpless.

However, if you are really weak in color, it should have little impact, and it is easy to solve the problem by memorizing a few pictures that you can't. It will certainly help to buy all these test charts and study them yourself.

Good luck. You can talk if you are interested.