Why do logos use simple shapes?
Short answer
Logos are used at many sizes and in many places. Simple shapes are easier to recognize when they are small, and they are easier to reproduce in print, on screens, and in other formats.
How it works
Fine details and complicated lines can disappear or merge when a logo is reduced. A simple outline with a limited number of colors is more likely to keep its distinctive features from a distance or in black and white.
A logo also helps people remember a name or organization. Simplicity alone is not enough; the mark needs distinctive features and an impression that fits its use.
Key point
A simple logo is not automatically better. The important question is whether it remains recognizable at the sizes and on the media where it will be used.