Locate specific color in image?

[jackjohnbrown]

I’m prepping a file for screen printing, and need to limit my colors to 3. The file has black, green, and blue — but somehow I used two slightly different blacks. How can I find out which element of my design is using the “wrong” black?

(I’ve been manually selecting objects and checking their color value but this seems both ridiculously inefficient and open to creating new problems (moving objects a pixel by mistake, etc.)

[walt.farrell]

If you're in Designer, and using vector objects, then you could:

1. Pick one object and verify that its Fill is the black you want.
2. Select > Select Same > Fill Color
3. Hide everything that was selected (one click in the Layers panel).

Any black objects that are not hidden are the wrong black.

If you're also using black strokes I think yiou could unhide everything, and do the same with an object with a stroke that you know to be correct.

[Wosven]

If you're using AP, and the second black is a rich black containing magenta (and the other one not), you can try checking the channels to search where it is used.

[jackjohnbrown]

2 hours ago, walt.farrell said:

If you're in Designer, and using vector objects, then you could:

1. Pick one object and verify that its Fill is the black you want.
2. Select > Select Same > Fill Color
3. Hide everything that was selected (one click in the Layers panel).

Any black objects that are not hidden are the wrong black.

If you're also using black strokes I think yiou could unhide everything, and do the same with an object with a stroke that you know to be correct.

Great idea, I had done the Select but didn’t think about hiding the results. 

42 minutes ago, Wosven said:

If you're using AP, and the second black is a rich black containing magenta (and the other one not), you can try checking the channels to search where it is used.

Hadn’t considered that, thanks!