Subject: Does Red light from sunlight have an impact on our skin-tone?

I read that red light from sunlight penetrates the skin deeper than any color. Our skin colors seem to 
range from a scale or red (light cream to dark brown) 

1. Over the years of human history, Does red light have an impact on our genes and how melantonin 
determines our skin color? 

2. In addition, what would happen to the skin tone of humans if blue light penetrated our skin the 
deepest from the sunlight? 
Do you think our skin color would look different or the flesh would feel different?

Re: Does Red light from sunlight have an impact on our skin-tone?