Good Flag Design
The Five Basic Principles of Flag Design as stated by the The Guiding Principles of Flag Design - North American Vexilogical Association (NAVA) and the UK’s Flag Institute Collaborate on Flag Design.
1. KEEP IT SIMPLE
The flag should be so simple that a child can draw it from memory ...
2. USE MEANINGFUL SYMBOLISM
The flag’s images, colours, or patterns should relate to what it symbolises ...
3. USE TWO OR THREE BASIC COLOURS
Limit the number of colours on the flag to three, which contrast well and come from the standard colour set ...
4. NO LETTERING OR SEALS
Never use writing of any kind or an organisation seal ...
5. BE DISTINCTIVE OR BE RELATED
Avoid duplicating other flags, but use similarities to show connections ...
There should also be two more points to consider
6. IT SHOULD LOOK LIKE A FLAG
The design of a flag should be classic and timeless. Unfortunately, many modern attempts at flag design look more like a logo than a flag and a logo dates very quickly ...
7. BE 'FUTURE PROOF'
Incorporate design elements that will not date or require future changes ...