**Vexillographic** is the adjectival form relating to vexillography, the design of flags. A vexillographic decision concerns the choice of colours, charges, proportions and symbolism that constitute a flag’s design. Vexillographic practice draws on heraldry, graphic design and the cultural meanings of colour and symbol, and is increasingly informed by principles such as those set out by NAVA’s ‘Good Flag, Bad Flag’ guide.
**Example**: The vexillographic choice to use only two colours and a single charge made the flag of Canada (1965) instantly recognisable at any distance.
**See also**: [vexillology](/glossary/vexillology/), [vexilloid](/glossary/vexilloid/), [geometric-construction](/glossary/geometric-construction/), [construction-sheet](/glossary/construction-sheet/)