Different colors even though RGB values are equal

Question

I'm facing a quite weird color issue with the Interface Builder in Xcode.

I've set the background of my view in my view controller to #1F242C:

So far so good. Then I create a UITableViewCell in a nib file where I set the background to the exact same color #1F242C:

Now when I start the app, the background of the UITableViewCell is suddenly different from the viewcontroller view's background, even though the RGB values match and the opacity too.

When I analyze a screenshot with Photoshop

The view's background is: #29303A

and the cell's background is: #1F242C

Whey are they different colors despite the RGB values being the same? I don't change the colors programmatically in my source code.

Here's how the different colors look:

Answer 1

This is an issue due to iOS 10 and the new extended color gamut of the new devices screens.

Click on the wheel at the right of "RGB slider" in your color picker, and chose sRGB IEC61966 2-1.

You will see that the RGB values will change at this point. Put them back to the RGB values you previously entered. That should be it!