[Baeocystin]

Take an art history course. Pay close attention to how the artists that Western culture* holds up as ideals used color.

There are no shortcuts. Emotionally evocative use of color is 90% cultural, and the only way to learn how we in the West interpret color use is long-term study over time, the same as learning to interpret literature, philosophy, or sculpture.

(*assuming your intended audience is Western. You'll still want to at least touch on other major systems as well to increase contextual knowledge.)