Vexillology is the art of designing flags. A good flag design is simple, meaningful, and easy to recognize from distance. Flags are used to represent cities, states, countries, organizations, and even movements. Flags bring people together under a series of symbols and colours. To design a flag, you should first decide on the basic layout, add symbolism, and keep it simple.
Choose the shape for your flag either rectangular or square. Your flag doesn’t have to be rectangular or square, but you should stick to simple shapes that are easy to see from a distance. For example, one of a kind Nepal’s flag is made of two overlapping triangles.
Then you should decide on the background color. It should contrast with you logo colors.
And your artwork or logo file should be in vector format to get the best printing results.