Color profiles the same yet, when copying and pasting layer to new document the color is completely

[whitney23913264qrbh]

Hi all, 

I've spent hours scouring the internet to figure out why my colors aren't matching up. I'm using Adobe photoshop, and I'm copying layers from one document into another. The same program. I'm not switching between programs (as I see that is a lot of other peoples problems with color). 

The color profiles are the same. They are both sRGB. I've tried assigning profiles to both of them ( to Adobe RGB) and attempting pasting my layers in afterwards. The same outcome of different variety of green. I then read to not assign profiles but, to convert. So I did a save as, and tried that. The same outcome. I also tried to set color settings to default, but I never changed them and they are the same as the default (North America General Purpose 2). I attempted to anyways. 

I also read that I needed to embedd color profiles? I'm unsure of what that is, but I read a save as should do it? So I tried that as well. The only thing that seems different from anything I've used before is the fact that these files are on a large paper space. Approximately 60" long. But both are around the same length and yet have different colors. So I'm stumped. 

Any help is greatly appreciated! 

[D Fosse]

I also read that I needed to embedd color profiles?

By @whitney23913264qrbh

That's the core of it.

This happens because one of your images is untagged, it doesn't have an embedded color profile. Never, ever, work with untagged images. You can see the result. Always make sure the profile is embedded.

The embedded profile will always override your working space. But there has to be one. If not, the working space kicks in as a fallback default. Some color space will always be assumed.

With correctly embedded profiles, a paste operation will convert in the process, so that the color appearance remains unchanged.

[TheDigitalDog]

Check your Color Settings for Paste Mismatch warnings and how this option works with tagged and (ugh) untagged data (assumption for untagged data too).

See: http://digitaldog.net/files/PhotoshopColorSettings.mp4

Photoshop CC Color Settings and Assign/Convert to Profile video