4 votes
Accepted

How to pick a different color but with the same perceived luminosity (not by eye)?

The next image is in Affinity Publisher. Its color mode is sRGB. I have 2 rectangles. In the bottom rectangle the fill color is your violet RGB(#6727AE). The top rectangle has a quite bright green. ...
  • 52.5k
3 votes

Will digital printing be able to match RGB better than offset printing?

An ink can not match that color. I doubt any ink system, such as CMYK, or even CcMmYyK, will match it. There's no way to get the same vibrance in standard inks. Digital printing, while it may accept ...
  • 200k
3 votes

Should a Hex value match its RGB value in a Brand Guideline document?

I've seen brand guidelines with wildly inaccurate HEX/RGB matches. To me.... when I see this, it seems like someone merely sampled the color in Photoshop and used whatever number shows up without ...
  • 200k
2 votes

Photoshop mapping colors

Your image has a moire-like repeating pattern. I assume that you called it "the noise" . If one scans a printed image, a pattern of same type appears. But that doesn't cause global color errors. The "...
  • 52.5k
2 votes

RGB/CMYK/HEX to Pantone Reference for Print and Solid Chip

Put simply, some RGB (RE:HEX) colors just can not be reproduced via CMYK. Your only option is to find something visually as close as you can. That often means ignoring the RGB?Hex numbers entirely ...
  • 200k
2 votes

Will digital printing be able to match RGB better than offset printing?

Scott has already covered the basics of RGB to CMYK conversions, so I won't go over the same ground. If, however, you can persuade them to go with a spot colour, then purely on economic ...
  • 4,375
2 votes

Matching a Digital Image's Color to a Scan

One Answer is called color-management. You could profile your scanner with an X-Rite Colorchecker card and an X-Rite software or something like Argyll-CMS
2 votes

Can RGB screen color exist in real physical world?

You may wonder if there exists a material or non-electric light which looks the same as the said RGB screen blue. Of course that's perfectly possible. In the beginning there's of course the blue ...
  • 52.5k
1 vote

How to pick a different color but with the same perceived luminosity (not by eye)?

I would go with Lab, with channel manipulation (setting L to the same value) it should be quite easy:
  • 11
1 vote

Need help to accurately measure acrylic paint color into RGB

Color is a bastard to get accurate. Note: here i assume accurate really means accurate and not something my eyes like discussion of anything else is pointless. There is several reasons for this even ...
  • 55.9k
1 vote

Matching 'fake' in Photoshop - lighting on overlay

The face of BG points to different direction and there's no direct sunlight. Your grabbed face doesn't need new highlights nor shadows except the back hair must be darker. The corner where some gloss ...
  • 52.5k
1 vote
Accepted

How to replace a VERY specific color (HEX code) for another one in Photoshop?

I'm pretty sure this can be done in numerous ways, since it's a black color things are even easier. Here are two ideas. Destructive: Use Replace Color on blacks of your layers and add +1 lightness ...
1 vote

Can RGB screen color exist in real physical world?

Yes. RGB is part of the light spectrum - it's essentially the visible portion of the spectrum. How light interacts with objects, how it is reflected, refracted, etc. and otherwise combined can easily ...
  • 200k
1 vote

Match projected RGB to printed CMYK

You will have to create similar viewing conditions for both of the images if not industry standard ones. The colour matching is the subject of "Colour Management." Within that is what is called "...
  • 5,056
1 vote

Match projected RGB to printed CMYK

You need to calibrate your printer and your projector using specialized hardware like Colormunki photo. One primitive way to do it is to use your graphics card's software and tweak it a bit to get ...
  • 34.2k
1 vote

Photoshop mapping colors

It would seem the real solution to your problem is perhaps to address why the scanner isn't working properly. To replace it or borrow a working one would seem to be the obvious answer. Taking a ...
1 vote

Should a Hex value match its RGB value in a Brand Guideline document?

Okay, RGB values do not mean anything in themselves. They must be paired with the knowledge of what colorspace they represent. A RGB value in sRGB is very dofferent from one in ProPhoto RGB or Adobe ...
  • 55.9k
1 vote

Should a Hex value match its RGB value in a Brand Guideline document?

Hex codes for RGB colours are simply the RGB decimal numbers expressed in hexadecimal notation (base 16). The hexadecimal number for the green in the example shown is incorrect. The others are wrong ...
1 vote

How do I make a set of images exactly the same hue/darkness as a sample image?

When using the Image>Adjust>Match Color feature... It may be necessary to remove elements from the source image that are not in the new image. For example, the yellow line in the road will cause the ...
  • 11
1 vote

Match skin tone in a black and white photo

Use the clone tool to paint with the actual skin pixels. All of the tones that you need are already there in the photo. If you need to, use a second copy of the photo (in another window) as the source ...
  • 1,947
1 vote

HSL instead of HSB in Photoshop CC 2015

Apparently you can download from Adobe itself: https://helpx.adobe.com/photoshop/kb/optional-file-format-plugins.html It's the one called Electric Image & HSBHSL (Optional Multiplugin)
  • 7,841
1 vote

HSL instead of HSB in Photoshop CC 2015

You could create a script that does this for you. Start extendscript toolkit and run following in Photoshop: var fgc = app.foregroundColor; alert(hsb_to_hsl(fgc.hsb)) // http://stackoverflow.com/...
  • 55.9k

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