The best color combination is three colors

Quick answer：

The best color combination often depends on the context. In general, a harmonious color scheme can be achieved by using a primary color, a secondary color, and an accent color. This combination can create a visually appealing and balanced design. For instance, a primary color like blue can be complemented with a secondary color like orange, and an accent color like yellow to add vibrancy. However, the 'best' combination is subjective and varies with personal taste and the specific design requirement.