What Ryan said was simply an accurate observation. Lamar has darker skin. That's not racist, it's a fact.
Johnny Winter's tattoos are easy to see because his skin was almost white. Seeing tattoos on dark skin is difficult. The darker the skin, the more difficult it is to see the detail of the tattoos. That's not racist. It's just a visual reality. Same with anything that pertains to the comparison between color and pigment.
There's no shame in having dark brown skin.