According to the search results, the color of the human brain is pinkish-gray. The brain is made up of tissue called grey matter, which is mostly located in the outer part of the brain, and white matter, which is located deeper in the brain. When the brain is alive, it can be considered pink due to the flow of oxygen, blood vessels, nerve fibers, and other components. However, the color of the brain can also appear white, gray, or yellowish when it is immersed in alcohol or gel. It is important to note that the color of the brain can vary depending on the context in which it is observed.