Black is a tried and true apparel option. Most everyone looks good in black, almost all imprint colors look great on it, and it appeals to a wide audience of users. On the other hand, it is also a color that can sometimes come across as too harsh, or boring.
An up-and-coming trend is replacing black with alternative dark shades. One such option is black heather. This colorway (shown above, middle) lightens up the black color, and provides additional contrast. This is a really popular option with colleges, restaurant retail, and athletic programs.
Another great substitute is classic navy blue. A rich apparel color can bring out the colors in your design, and can even feel refreshing.
Some additional colors that are currently popular are: charcoal, athletic heather and heather brown.