Black latex gloves are latex gloves which have been colored with a black dye, so that they are a deep black color rather than the more conventional white or cream. Several companies also make black nitrile gloves, which look very similar to latex gloves but are manufactured from nitrile, a material which will not trigger latex allergies. Companies which stock gloves such as medical and beauty suppliers tend to carry black latex gloves, and these gloves can also sometimes be purchased at drug stores.
The color isn't the only thing about black latex gloves which stands out. These gloves tend to be tougher and more durable, and while they are not sterile, they are usually thick enough to keep bacteria and viruses from penetrating the glove, which makes them safe for use in biohazardous situations. Black latex gloves also do not show stains, which can make them less distracting.
Tattoo artists often like to use black gloves because they can be used to frame the site of a tattoo, allowing for clear and crisp visualization of the area. The gloves also do not show ink stains, reducing distractions and allowing the tattoo artist to focus on the area of interest. Automotive mechanics, beauticians, and other people with somewhat messy jobs use black latex gloves to reduce visible stains as well, making it easier for them to focus and see what they are doing.
Classically, black latex gloves are not powdered, and many companies texture their gloves to provide additional grip and traction. The lack of powder can make the gloves a bit more difficult to put on, and it is important to draw the gloves on carefully so that they do not tear or rupture, thereby compromising their ability to protect the hand. Powder-free gloves will also not leave stains and marks, as there is no powder to create distinctive markings, which is a definite benefit in the eyes of some users.
Some medical personnel like to use black gloves because they do not show stains from blood and other body fluids. In regions where latex and latex-free gloves are used, the latex-free gloves may be black, blue, or purple so that they can be readily identified, making it easy for first responders to pick the right gloves for the task. People with latex allergies should make sure to inform medical personnel about their allergies so that appropriate gloves are used.