>>2601276From what I've experienced, "good colors" comes down to the light, the exposure, the color balance, and the sensor/film.
The lens coatings can effect the colors and the contrast, but from what I've experienced a "bad" lens only means you need to up the contrast/saturation a tad bit more in post processing.
Speaking of, PP doesn't have much to do with "good colors" if your definition of such is natural, yet rich and photogenic. Many photographers prefer to "get it right in the camera", and they choose camera W with X film or Y sensor and Z lens specifically because it gives them the results they want, under the conditions they most often shoot in, and without too much fuss in post. To this type of photographer, if you have to do a lot of color correcting in post production, you probably did something wrong - not the end of the world, but it's a personal thing.
However, if you're into the really heavy-handed VSCO-esque processing, then the most important thing is post processing, since your final image relies more on that "mood" you're after which you are probably trying to keep consistent, vs. going about keeping the image fairly consistent with what you saw.
