By using vivid images designers can draw user's attention, communicate a message quickly and effectively and leave a memorable first impression. Practically all websites use images in their design, but few use vivid images to achieve maximum results. What is a vivid image? A simple definition is an image or photo that is striking, shocking, intriguing, interesting, beautiful or sexy (we'll be looking at plenty of examples below). It causes a reaction from the senses of visitors that an average image would not.
Words can communicate on their own. Photos can often communicate quicker and in different ways than text. Vivid images used in combination with the right words can be incredibly powerful. These images do more than just play a mere complementary role in the design.
A good starting point for this discussion is to look at the purposes of images in general and why they are used in web design. From there it's possible to observe the true impact that vivid images can have as opposed to just standard images.