I’ve been working very hard, which hasn’t left much time for blog posts. I’ve decided to start posting quick tips here — the solutions to problems I’ve run across in my work. Some of you are working designers, and these tricks may be helpful to you. Some of you are design aficionados, in which case these kinds of posts may not be interesting , but I’m working up a new feature for you, too, in the near feature.
Problem: You create a JPG image in Photoshop that has the same background color as you’ve specified for your web page. The goal is to make the image background blend into the page, so that the image is not boxed.
The page looks great in Firefox (and other browsers), but when you open Safari, the background colors don’t match. You double check — the hexadecimal codes are the same. What gives?
Solution: Check to see if your Photoshop JPG has saved a color profile with the file. Safari, unlike other browsers, will respect this setting and actually change the colors in your image to match your specifications. It’s pretty sophistiated of Safari, but it’s usually not what you want when you’re designing a web page. Save all of your Photoshop JPGs without an attached profile, and you should fix this problem.
ETA: Here are some example screenshots:

JPG image on color background in Firefox

JPG image on color background in Safari, saved with profile

JPG image on color background in Safari, saved WITHOUT profile
You can see these pages at http://www.leslietanedesign.com/example/ (with profile) and http://www.leslietanedesign.com/example/test2.html (without profile).