A logo should be made attractive with the right combination of ideas, thoughts, shape, design and color. It tends to lose its importance if it is not influential.
There are five elements that need to be looked upon to create an iconic logo desgin.

It is describable – A logo should very well depict its meaning as well as its reason for being the logo of the particular organization.

It is memorable – A logo should be designed in a manner that makes it easy to remember. It helps in effective creation of brand loyalty.

Effectiveness of color – Color is secondary to the shape and form. A good logo must involve factors such as contrast and brightness.

It is scalable – A logo should be equally attractive in all kind of sizes. It should work out even when it is just half an inch in size. This implies that even for small items it works with great precision.

It is appropriate – The design must be appropriate for the business or the organization it recognizes. This can be fulfilled through an in depth research of the industry it is a part of. Moreover it should be easily distinguishable from its competitors.