There is no definitive answer as to which colors match, as it often depends on personal taste, situation, and environment. Some traditional color combinations include:
red and green
Blue and Orange
Yellow and Purple
Black and white
However, with the rise of eclectic and unconventional design, many other color combinations are now considered harmonious, such as:
Pink and Gold
Mint Green and Coral
Burgundy and Olive Green
Ultimately, experience is the best way to determine which colors match.