Overview
The background color of my iPhone app in the simulator (iMac) looks different from the color on the device (iPhone 3GS).
EDIT (following section has been added)
The following are all different:
story board color (xib file)
simulator color
…
I need to determine whether a selected UIColor (picked by the user) is dark or bright, so I can change the color of a line of text that sits on top of that color, for better readability.
Here's an example …