Some popular colors for the fall and winter are dark pumpkin, warm honey, olive, deep lavender, red, and a deep marine blue, dark greys will be seen as will metallics like bronze and pewter. Argyles and plaids are fashion-forward patterns to use for punch.
Black is easy because it goes with everything, you could add gold or silver accessories or try vibrant colors like fushia. Stay away from orange though.
The answer depends on where you live. I live in Kenya, Africa where most people enjoy copying fashion ideas from America. However, most people are now turning back to more African clothing, like Kanga and Kitenge. These usually have large bright colored prints of brown, green, yellow, and red.
i think the most popular colors are red, white, and blue because it is our countries colors and it is a good color for decorations and it is a good colorful shirt to wear around.