Images look dull/blurr

Hi, I saved my image profile on sRGB on Photoshop, then I exported them - save for web. But whatever I do, the images on my website http://tandem-mundo.com look dull, and nothing like the original. You can see the header image that looks washed out. I tried Googling and fixing, but just not working. What am I missing? Please help. Thank you Vasu