For odd reasons, I think I like a very specific shade of green (around 525nm) because it shows a lot of promise in reducing migraine headaches in severity, frequency, and duration. It’s an example of what’s called photobiomodulation, which is a technical term for using non-ionizing infrared/visible light to signal your body to do certain things (ionizing radiation is the damaging stuff that has more energy, like UV rays).

Another example is using red light therapy to help wounds heal faster and improve skin quality. Red or infrared light exposure for therapeutic reasons was investigated by NASA and adopted by the US Navy.

So it’s probably not the reasons you were looking for, but I love those colors because they heal people :)