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When I place a few objects one over another, each with different colors and transparencies, so that they all overlap somewhere, how would I measure the color on this overlapping area? Similar to the way the eyedropper in photoshop would just give me the color of the pixel he is hovering.

Is this possible without ridiculous detours? All I could imagine is making a screenshot pasting it and measuring from there - but this kind of the definition of a ridiculous detour...

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4 Answers 4

up vote 2 down vote accepted

Another slightly easier workaround would be to use Photoshop's eyedropper tool directly.

This doesn't seem to be commonly known, but it can sample outside Photoshop docs.

With the Eyedropper tool selected, click and hold in a Photoshop document, then drag to any point on your screen, release and you'll sample the colour at that point.

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You are right, probably some website developer's color picker would suffice as well. At least in the RGB spectrum, but I assume this would be the case with photoshop's out of work area picker as well... –  Jan Limpens Mar 23 '12 at 13:17

Unfortunately, no.

An easier hoop may be to select the object, choose Object Rasterize. Then shift-click and area with the Eyedropper Tool. Note the color, then undo twice.

Or, select the objects, drag them to the Symbols Panel to create a symbol. Shift-click with the Eyedropper tool. Then choose "Break Link" from the Symbol's Panel menu.

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Whow - that's sad! –  Jan Limpens Mar 22 '12 at 1:05

I think the closest to what you are looking for is Flatten Transparency, under the Object menu, which breaks the selected objects up into objects with fill colours based on the result of their overlaps. Still a bit of a detour but it gives you the colours as proper fill colours which can be picked up with the eye dropper or used any other way.

enter image description here

Since it changes the original objects you'll probably want to copy them off the art board then flatten transparency the copy, or, flatten, get the swatches you need, then undo the flattening.

(when working in cmyk, watch out for gamut-related surprises when turning the partially transparent version of a red or blue into a solid swatch, resulting in what appears like a big change in colour)

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Try using the DigitalColor Meter app in the Utilities folder. It lets you sample any pixel you can see on the screen, in all flavors of RGB or Lab.

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