Most men come to store for first time for a suit and do not know how to choose a color, so you need to prepare before ordering.
Black suit
A black suit is required. The classic color is most unmistakable color. Team a basic white shirt with black leather pumps for a casual and casual look.
But black is not an easy color to pick up, and it is easy to wear a security guard or salesman look. Black is recommended to be combined with other things, such as a blue shirt or a striped shirt inside, to look gentlemanly and fresh.
Grey suit
Gray suits are often worn, they are relatively more mature and old-fashioned, emphasizing stability and elegance of business men.
But combination of different things can also make a gray suit wear a different temperament, for example, pairing it with light-colored things like white will make it look fresh again. In collocation, you can choose a brighter colored tie to add a sense of hierarchy.
Navy or navy blue suit
Young and fair men are more suitable for dark blue and dark blue suits, active and practical colors are important for them. It better matches skin color and hair color of Asians and adapts better to environment. 
For example, a navy blue suit is a very stylish and trendy suit color, and pairing it with white or blue pieces will give people a very refreshing feeling.
The first suit in life is usually at a relatively young stage. Of course, budget can be tight and requirements for aesthetics and functionality are relatively high, so choosing right color and fit is key. If you like it and want to try on costumes, then feel free to try. I hope above exchange is helpful to you. Thank you for your likes and selections~