There is no problem with tattooing people with darker skin. Of course, tattoos on dark skin will not be as obvious as on white skin, especially those with particularly dark skin. Contrary to imagination, using white pigments is not a good way to get tattoos on black skin. Red and black colorants show better results.
Don't always think about using white colorant. Even under black skin, it doesn't look very clear. On Latins, Mexicans and Orientals, all tattoo colors will show up well. People with black skin are always hesitating whether to get a tattoo. They worry that the effect of the tattoo on their body is not very good. This requires some communication work and assure them that the tattoo will look great.
Collect some photos of former customers with black skin and show them to new tattoo customers. This will be very convincing to their reluctant emotions. Another thing you need to remember is to try your best to make people with particularly dark skin tattoo the inside of their forearms, where they are usually slightly whiter, and the tattoos are slightly more vivid.
