What is the opposite of brown on the color wheel?

The opposite of brown on the color wheel is typically a shade of blue. When brown is mixed with its complementary color blue, it produces a neutral grey. Blue is a cool color that is often associated with calmness, serenity, and tranquility. It can also evoke feelings of trust, security, and stability. Blue is a versatile color that can be used in a variety of design concepts and is often used to create a sense of balance when paired with warmer tones like brown.