HEX color value not consisted with Adobe


I’m a visual designer and I’m use Omnigraffle to realize app mockups. I realize that any time I create a design and create some reference for the dev team, the result is always different. A quick example should clarify:

  • take a screenshot on the iphone
  • import it in omnigraffle and use the picker tool to check the HEX of one of the color
  • open the same image in photoshop and use the picker wheel to check the same color

the tow HEX are different. The photoshop one is exactly the same used in xCode to build the app.

I think this is a problem of color space used in Ominigraffle, but really can’t see any option or way to fix that.

Any thoughts?