How to take such a photo with a particularly bright color?

If you want to take colorful photos, it has nothing to do with the camera. In the film era, the exposure can be increased by 0.5~ 1 (only for negative films, not for reverse films). In darkroom, 0.5g benzotriazole can be added to every 500ml developer to prolong the development time.

Mechanical and Digital Physics: First of all, you should understand what color contrast is. Refers to the mutual interference and contrast between colors; Secondly, pay attention to color. If you are interested, I suggest you study photographic optics. This knowledge is very rich, and it is not clear in one or two sentences here.