If you see a color difference in Internet Explorer (when compared to other browsers, such as: Firefox, Google Chrome, Safari, Opera, etc.), then here your reason:
In case those are PNG images, Adobe Photoshop stores gamma data inside them which is causing image colors to differ in IE7.
How to solve it?
About (Author Profile)
Vygantas is a former web designer whose projects are used by companies such as AMD, NVIDIA and departed Westood Studios. Being passionate about software, Vygantas began his journalism career back in 2007 when he founded FavBrowser.com. Having said that, he is also an adrenaline junkie who enjoys good books, fitness activities and Forex trading.