All designers, regardless of what medium they work with, use the same tools and the same principles of design. In this lesson, we will discuss these tools and principles, and how they affect website design. The agreement or harmony of parts or features to one another, or as a whole the harmony of conduct or practice.
Consistency is the first tool for website designers.
Always be consistant. Studies show that end-users who are confused by navigation or believe they have left a site usually continue on to other sites. Color Website designers use color to help the users feel comfortable. By utilizing the same colors in the same places for the same things you develop consistency. There is a 'psychology' to color.