when you are over a color property you can press E to activate the eye dropper
but this is not working out of Blender.
so press Ctrl E instead of E, and you can go out of blender and left clic on the color you want to select. done!
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Hi 1C0D,
Chookity!! Nice and simple addon. I love it. Just tested it and it works well. Has trouble though when grabbing a color from a second monitor (Iām using Win 10). I just end up with black (0,0,0). Other that that this is a great little addon. I see myself using this quite a bit.
Cheers and stay safe!
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ok thks for this information. Iāve planed to do this. I needed a confirmation because I have only 1 screen 
I recommend you this one too simple and I use it a bunch https://github.com/1C0D/Open-OS-Browser
and this one too if you want never loose some work
I add another one because this is very needed to work with the console opened particularly if blender freeze. it allows to pass open and pass the console over others windows https://github.com/1C0D/Toggle-Console-on-Top-WindowsOnly--Blender
Hi 1C0D,
Seems to work ok now except for applications like the Win 10 Task Manager. For me it freezes Blender until I click on something else other than the Task Manager. Other apps like Chrome, FireFox, Photoshop, IE, Excel, Remote Desktop, Windows Desktop and the Windows Task Bar and Menu too all seem to work well.
Another issue I found is the colors are not exactly the same. Perhaps, Blender is doing some gamma correction or something else is happening. Tried Filmic or Standard but that didnāt make a difference. This happens regardless of the monitor I choose.
Iām using K-Cycles 2.93.2 and Win 10 Pro 64bit, Version 21H1 OS Build 19043.1165.
Above is a screenshot that grabbed both at the same time so you can see it also. The red line shows where I clicked. I used https://www.colorspire.com/ to grab a color from within FireFox.
Looking at this in Photoshop the Blender color is RGB ([0.549020, 0.223529, 0.211765, 1.000000]) (or RGB (208, 120, 125) as per Photoshop) while the Website color is (161, 48, 52) which Photoshop confirms.
Hope Iām making this clear enough.
Cheers and stay safe!
2 Likes
max_color_picker.py (2.9 KB)
ok I have exactly same result now.
for info I calculated the gamma like this:
using āEā, I get these values
letās take the red 0.27
now if I do ctrl E I get exactly same result but in the console you can see ātotā
here [142, 150, 153] they are RGB values of the pixel that Iām printing
so the gamma we want to calculate is
log(0.27,142/255) I pasted there https://web2.0calc.fr/
I took average value with RGB so finally 2.237
and to convert I do: b = ((a / 255) ^ gamma)
N.B: I added protections against errors. but I couldnāt reproduce the error you described
and for the moment I use only 1 pixel. I will see it later. maybe 4 pixels by default and/or propertiesā¦
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I tried this version on WIndows 10. But my blender freezes like someone else said, until I click in some cases.
Also I cant sample outside the blender window it seems like? Or maybe its just a cursor icon issue.
Edit: Oh wait! Yeah it does work outside of blender, sampling in like Pure Ref. Just the Icon is not there/consistent, so didnāt think it was working.
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yes he told about task manager only but I added an error protection. the cursor is linked to blender window outside this is the OS cursor. but I canāt change the cursor for every OSā¦
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Is still very cool that it works, even if the cursor doesnāt change!
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Were you using Ctypes or anything like that?
https://gist.github.com/indwic/2c32c4a2150172843d85044ce86a30b5
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yes I can do it system by system. I will certainly consider it.
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problem I install pypiwin32 but I canāt never import win32api, win32conf
Yeah, i had issues like that. I used Ctypes before for mouse events/etc, but, gotta find right thingā¦
I can poke around more too.
Hi 1C0D,
Updated the plugin but unfortunately I still donāt get a matching color for some reason. Canāt tell why at the moment. Here Iāve grab it from the same screen. Visually itās closer but still not exact.
Cheers,
Paul
try to modify the gamma with the RGB values or change the photo by a RGB view and give me the value tot in console. I can try to calculate it for you.
but I touch the limit of my knowledge after 
I think blender deals with the screen material but this is very obscur and I receive 0 help from the blender python forum soā¦ Campbell told me this: āsystem wide color picker support from Blender is a feature request.ā so maybe someone will deal with it in Blender.
Yeah i think the issue I had with my own addon recently, is same as this. I may have to pick a value in color picker, but then gamma correct for my actual code or somethingā¦ Mine was not matching, one was darker than I expected/same thing.
Actually, when i export materials from blender into 3DS Max, I gamma correct the colors coming in as well, in my maxscript, since similar issue.
I found this topic on blender dev https://developer.blender.org/T41287 what a messā¦
an international standard? https://www.color.org/index.xalter
I found this code from sublim text. but I must watch it later to understand maybe better. hard the first timeā¦ https://github.com/weslly/ColorPicker/blob/master/sublimecp.py
the code seems so clean
Yeah, I donāt think Blender is designed to render with color-matching in mind. I get the impression that weāre expected to do that in post-processing, either in the Compositor or in an external program like Photoshop.
That said, Iāve found that I get better color matching by always using the HEX code instead of RGB or HSL values. Blender seems to like converting HEX values to the local color space, and the HEX values stay consistent, while Iāve sometimes noticed my RGB numbers get altered from what Iād originally pasted in.
And of course, avoid using Color Management > View Transform > Filmic. Sticking with View Transform > Standard and Look > None keeps you closer to standard sRGB values.
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yeahā¦ what a messā¦ lmao.
Iāve seen alot of people moving into ACES lately seems like, or maybe because of all this color management BS. But thatās more so in film/video.