Questions tagged [color-conversion]

Questions about changing colors from one color space to another, most often to match the original color as closely as possible.

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In Illustrator, how to replicate exactly the displayed CMYK mode colors in RGB mode?

I have a two stop gradient in CMYK color mode (FOGRA). After converting the document to RGB mode (sRGB), there's a slight color shift between the two gradients. The RGB gradient is a bit redder/darker....
 adel357's user avatar
1 vote
1 answer
37 views

Can a bmp image be 16bit depth?

I'm trying to create a watchface for my wristband and the only form of image I'm supposed to play with is a bmp image, 16bit depth, 300 KB size or lower. It seems impossible to combine these 3, Please ...
Manal Designs's user avatar
1 vote
2 answers
73 views

Color Difference functions are not good. What am I missing?

In the last few days, I tried out three renowned color difference functions. My expectations were very high as it was a function that reflected human perception. CIE2000 ITP (also called ICtCp or BT....
imida k's user avatar
  • 121
8 votes
2 answers
2k views

Why is CMYK needed when printing when RGB+color profile can provide the same?

I see some professional printers asking for documents using CMYK instead of RGB. But I don't understand how it is better than RGB with an appropriate ICC color profile. Indeed, if my understanding is ...
tobiasBora's user avatar
0 votes
1 answer
129 views

How many colors in YCbCr JPEG under common conditions 3x8bits?

Aproximayly 1/3 volume of a cube is at this picture from wikipedia So does YCbCr JPEG have aproximayly 2^(3*8)/3 = 5 592 405 colors? Also coefficients KR+KG+KB=1 are used for converting YCbCr to RGB. ...
Imyaf's user avatar
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3 votes
2 answers
200 views

Is there any list of which PMS spot colors are reproducible in CMYK?

Is there any list of which PMS spot colors are reproducible in CMYK? And a list of which Pantone colors are out of gamut for CMYK?
 adel357's user avatar
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Use new ase file to change multiple files created with old ase file and global colors

I have 30 files all colored using the same global color swatch palette generated by the same .ase color swatch library. Is there a way to use a new .ase file to globally change those colors? I know ...
Joe Bartos's user avatar
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0 answers
60 views

How can I procedurally modify the hair portion of this texture to better match the intended color?

I have this texture for the head and hair of a humanoid 3D model: That is the version of the texture re-saved as a .JPG. For reference's sake, here is the original in .PNG format: This character ...
Jack Harris's user avatar
1 vote
0 answers
108 views

How to use color settings together in Photoshop, InDesign, PDF export for print?

There are color settings in Photoshop, InDesign, and in PDF export within InDesign. How do they work together? I know color is complicated so I tried to keep questions below focused. I get lost in the ...
NotARobot's user avatar
1 vote
0 answers
86 views

X-Rite Color Picker software alternative?

We have a very old Mac running X-Rite color picker. This software is awesome because it converts spot colors to CMYK based on our proprietary icc profile with the ability to limit the conversion to a ...
Megan Chichester's user avatar
8 votes
7 answers
5k views

Why is 50% black/white is 128, and not 127?

In the RGB color model, color values are represented in the 0-255 range. 0 is not a dummy value, so in the 0-255 range, there are 256 colors. When using HSL (or something similar), I'd expect 50% to ...
akinuri's user avatar
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1 vote
2 answers
343 views

Best CMYK export option

I am a children's book designer writer. I am trying to format my first picture book for printing. I have worked the images in RGB, but thought I should convert in Affinity before sending to printing....
Pelican Grace's user avatar
4 votes
4 answers
565 views

How to accurately isolate the hue of an image?

This began as a simple question but got confusing the more I thought about it. I hope somebody here can help me get it sorted. I was preparing an image texture that was to serve a purpose similar to ...
Mentalist's user avatar
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3 votes
2 answers
1k views

How can one transform a neutral lookup table texture for color blindness?

I want to add color blindness support on my Unity game, for this, the Color Grading effect appears to be the way to go. This is the neutral lookup table, i.e. when applied, nothing changes, it's ...
Eric Cartman's user avatar
0 votes
1 answer
298 views

I'm trying to replace/change colors in an image

I have this logo that came along with a theme: On a website, a new branding occurred, and now we have a limited range of colors: --color-primary-blue: rgb (44, 45, 101); --color-primary-...
DoomerDGR8's user avatar
3 votes
3 answers
471 views

How do grayscale values work in an RGB document?

I am trying to understand how channels work. I created a blank 8bit RGB document in Photoshop and filled the background layer with 50% gray. But however, when I navigate to channels and click on R, G ...
Nitish Shiggaon's user avatar
3 votes
1 answer
316 views

InDesign: Exporting CMYK doc as RGB

If I want to export a CMYK document as RGB, is it best to go into every swatch, and every placed link, and make sure all the colours are set to RGB before exporting? Or can I just set it to sRGB under ...
mttpl's user avatar
  • 105
1 vote
0 answers
101 views

Colour conversion discrepancies between — and within — Adobe apps

I work a lot with brand colours specified as Pantones, but often printed as CMYK. Naturally, I want those conversions to be as accurate and as consistent as possible, and I keep my Adobe applications’ ...
RickL's user avatar
  • 268
1 vote
2 answers
189 views

Best 4-color palette for dithering arbitrary images on screen

Duplicate of this question since society of retro-computing closed it and recommended it to be moved here. In the good ol'days many computers limit their palettes to 4 to 6 colors instead of 8/16/256/...
Schezuk's user avatar
  • 111
5 votes
1 answer
2k views

How to change color of this icon?

I've read several tutorials and watched quite a few videos but none of them are working. I am using GIMP and wanting to change color of this icon to the following hex color. Hex color - #006b5f The ...
James Goodman's user avatar
1 vote
2 answers
70 views

Derive a color from another one and a “ratio”?

(Disclaimer: I don't understand well color models.) For a document, to be typeset thanks to LaTeX, I have: a “dark” color (DC for short): CMYK(1,.60,.10,0), a “light” color (LC for short): CMYK(1,.35,...
Denis Bitouzé's user avatar
9 votes
4 answers
5k views

When is it really worth it to convert RGB to CMYK (If printers do it anyway!)

Since it is very overwhelming and doubtfully necessary, is it a good idea to depend on printers (RGB to CMYK) auto-conversions to produce usual printing needs? (When Spot Coloring isn't an option for ...
ARGMAN's user avatar
  • 227
1 vote
2 answers
40 views

Inverting photo using pre-defined material colors

I like to use black-backgrounded slides for my conference presentations. However, as research papers use white-backgrounded figures, they should be converted. A good option is inverting the colours. ...
st4co4's user avatar
  • 123
1 vote
1 answer
372 views

Changing Color palette and pixelating

I have a photo of my dog and I thought it would be fun for my kids to reproduce it in chalk on our drive way in large scale, then look at it from our up stairs window (and hopefully learn about colors ...
Andrew Burton's user avatar
2 votes
3 answers
337 views

Theoretical best colors for dithering

It would seem that I'm very bad at explaining myself. This is not unusual, thus this clarification. Imagine a flip dot display. 2 colors, one or the other, per flip dot or pixel, no substrate, no ...
Zacariaz's user avatar
  • 121
3 votes
2 answers
410 views

Question about what colours fall into the pointers gamut

Absolutely no idea if this is the best place to ask, if not, please point me in a better direction. Basically, I have been using this software to determine if the pixel colours of an image (the pixel ...
ACrypticFish's user avatar
1 vote
1 answer
298 views

Trouble converting from sRGB to CIE 1931 XYZ

No idea if this is the right place to ask this, if not, please point me in a better direction. I am trying to convert sRGB values R:100 G:78 B:94 to XYZ using this site: https://www.nixsensor.com/free-...
ACrypticFish's user avatar
0 votes
0 answers
59 views

avoiding 'dot gain' : preparing inner sleeve design in illustrator for printing on uncoated stock

I'm preparing album cover artwork -- I'm going to print some vinyl. The mfr recommends a disco jacket as the inner sleeve for 180g vinyl because it resists the vinyl tearing a hole over time. Their ...
S. Imp's user avatar
  • 143
1 vote
0 answers
110 views

Reproducing industrial system colors (RAL, NCS, Pantone)

Assuming I have access to equipment that gives me ability to measure precise amounts of fluids - is it possible to reproduce colours of any well-known system (like RAL, NCS...) using avialable ...
MacTok's user avatar
  • 11
0 votes
2 answers
20k views

Pantone TCX to Coated conversion

I need to convert some fabric colors to ink colors for screen printing. In the past I would use Pantone's X-Ref web utility but they've discontinued it. The only option appears to be paid a premium ...
Fullbleed's user avatar
5 votes
1 answer
187 views

What process has been used to derive these "tints"?

I have some brand guidelines. One of the main colours is #004F6B. The guidance advises the use of "10% tints" to expand the palette. The suggested tints for this colour are: 100% #004F6B 90%...
dtw's user avatar
  • 153
2 votes
1 answer
86 views

Why are even displays with high or complete specific color space coverage not correctly calibrated?

Despite many people asking about calibration, I couldn't find an answer to the following (imo important) question: . Why are so many displays incorrectly or un-calibrated, in other words inaccurate, ...
LuckyLuke Skywalker's user avatar
1 vote
1 answer
2k views

Exporting InDesign PDF with RGB converted to CMYK, colours look dark and muted?

I am working on a publication in InDesign, working on a 2019 Macbook Pro display, in which there are around 300 links to images. Some images are in RGB, and some in CMYK. Here is an example of an ...
DmnkVD's user avatar
  • 11
1 vote
1 answer
199 views

How to make a fading hue animation of a static image?

Say image A is a static portrait drawing of someone. You'd like to make an animation that has no movement of the artwork, but just alternating re-colorations of the portrait in such a way that it ...
user610620's user avatar
0 votes
1 answer
99 views

DeltaE lower but color tone/hue different

I'm currently digging into color calculations/ conversions and also work with DeltaE. Although the mathematical way might be correct, how can I get a better "human accepted" difference? ...
jona's user avatar
  • 165
5 votes
1 answer
1k views

Is every Pantone color displayable in sRGB?

I thought this would be asked somewhere before, but I can't find it. So if you have any good links for me to read please let me know. How much do Pantone (especially Pantone Solid Coated) and sRGB &...
jona's user avatar
  • 165
1 vote
1 answer
1k views

Export settings for commercial printer when using CMYK-converted pictures

I have pictures that are already converted to PSO coated v3 -profile. Wich settings are correct for the export in this case? My Indesign color management is set to "Preserve numbers/ignore linked ...
Pocket's user avatar
  • 53
0 votes
0 answers
425 views

Converting LAB value from D65 to D50

I'm building a database for the anime cel color(acrylic paint). I scanned them with an Epson Perfection v600 scanner calibrated with Silverfast's advance target, saving in TIFF with ProPhoto RGB ...
reddy's user avatar
  • 101
1 vote
2 answers
118 views

Gold shimmering texture effect for photographs

How to achieve the following gold texture effect for photographs? Does it start with adjusting the Hue to a gold color, but how to get the radial-like shimmering shiny look?
user610620's user avatar
-1 votes
1 answer
392 views

How to determine final greyscale look of printed color by B&W printer

I need to design a pdf document that can be both readable on a computer and on a paper printed using a "black & white" (i.e. greyscale) printer. Notably I want: to ensure that some text ...
tobiasBora's user avatar
13 votes
5 answers
6k views

How are the publishers able to print book covers in neon colors?

How are printers and publishers able to print book covers in neon? This House of Night book cover, for example, has the effect of neon color, but when I try to do it with CMYK they don't look vivid. ...
Nina B's user avatar
  • 131
1 vote
0 answers
227 views

How do I match the colors of my print with a reference print?

I have a series of around 100 scans of vintage stamps (all coming from the same scanner), and just a couple of actual stamps within that set, to be used as color reference. What's the best process to ...
Lorenzo Mancini's user avatar
1 vote
2 answers
593 views

Color shift when image is converted to CMYK

I'm working with a graphic designer to design a book cover for a self-published title of mine on Amazon. The purple in the cover image becomes dull when converted to the required CMYK. Original Image ...
Eric's user avatar
  • 11
0 votes
0 answers
122 views

How do I find multiple variation of same color which are visually contrasting

I am developing some kind of heatmap for a stock market-related project which has ~80 large to small boxes on the screen to denote a stock and it's change I use a red background on box to denote loss, ...
CodePanda's user avatar
  • 101
2 votes
1 answer
230 views

How to emulate this aesthetic using Photoshop or Gimp

I would like to replicate the style used in these images. I can tell it's not just good photography, but the images are also edited. What I wanna do is take an image that has a white background, ...
user avatar
1 vote
2 answers
248 views

Inkscape: how to “negate” paper colour?

I have a document prepared with Inkscape that contains bitmap and vector elements: Photo by Steve Johnson from Pexels. I want to print it on coloured paper (ivory) with an inkjet printer. Of course, ...
ebosi's user avatar
  • 153
0 votes
2 answers
294 views

Change Hex Color of Graphic Image in Photoshop With Transparent Background

My question is very similar to this one: Changing hex color of a graphic I just want to change the hex color of the shell graphic from #53767F to #375459: According to the top answer in that question,...
HappyHands31's user avatar
4 votes
1 answer
277 views

Color management from CMYK to RGB in a brand guide > in which Adobe program?

I experience small variations in the RGB values ​​depending on the different programs I used to convert the color values in CMYK to RGB. So my question is if there is a preferred program to use ...
Gudjon Freyr Oddsson's user avatar
0 votes
1 answer
184 views

Too bright HEX color

I've stumbled upon a problem while redesigning a Xd-mockup for a company I work for. They are using the CMYK 56,4,100,0 for alle their offline marketing, which works great for that purpose. But when I ...
Diana's user avatar
  • 1
1 vote
1 answer
47 views

I need to recreate/convert two designs respecting color blindness. Where to start?

I have a design made with RGB for digital platforms and the same design made in CMYK for printing. Now, I have to recreate both designs respecting Deuteranomaly, Protanomaly and Monochromatic. Where ...
RA828's user avatar
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