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Questions tagged [rgb]

Questions about RGB; short for red, green, blue. It's the colour process and model used in colour visualisation on digital devices. Ask anything relevant to graphic design about the RGB colour model.

7
votes
4answers
942 views

Converting from CMYK to RGB (to work with it), then back to CMYK

I am trying to make designs for printable products (shirts, mugs, phone cases, ...). I heard about the issue of the RGB and CMYK colors when printing. I am using Inkscape for my designs as it is a ...
0
votes
1answer
44 views

How to merge 3 images into a single one by RGB channels?

I have 3 different images: for the first one I'm only interested in the RED channel; for the second one the GREEN channel; for the third one the BLUE channel. My goal is to create a single RGB image ...
0
votes
1answer
42 views

Changing to CMYK Color Mode Negatively Changes Texture Color That Was Made With Photoshop Colorize Tool

I'm an eCommerce entrepreneur designing packaging for my product and have encountered a problem while wanting to print some packaging with a printing factory. They accept only CMYK color mode, so ...
2
votes
3answers
93 views

Convert color to another color with exactly the same values?

I have a website with several tones of green, and I want to convert it to a red website. Is there a simple way to convert all the green colors to the corresponding colors in red? I don't want to do it ...
3
votes
2answers
139 views

RGB and CMYK - what to expect when printing

I've designed some artwork which I originally planned to only print myself (on my home laser printer), and so I worked in RGB. I've since decided to do a print run in CMYK (outsourcing to a 4-colour ...
1
vote
0answers
63 views

When converting RGB to CMYK colour changes in print output

I am designing a poster in pink colour in RGB mode. The printing person ask me a CMYK file. I changed the mode to CMYK and send it to them, but when output comes the colour totally changes, it turns ...
1
vote
3answers
99 views

Can RGB screen color exist in real physical world?

For example the bright royal blue color; R0 G10 B220, HEX: #000ae1. I know this color cannot be printed nor painted. But can this blue color exist in the real world other than on a digital screen? For ...
1
vote
2answers
59 views

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

I have a client who insist on using a lapis lazuli ( Royal Blue ) color because its part of their brand name. The rgb value is about R20, G30, B225. Can this be printed? Will digital printing be able ...
0
votes
1answer
71 views

Should blending modes ever be used for logo designs? [closed]

In a vector editor like Illustrator, blend modes do not work in CMYK mode; blend modes only work in RGB mode. My logical conclusion is that you should never use blend modes on a logo design, because ...
1
vote
3answers
119 views

As to known the colors used in an image?

Supposing that I have the following table, Is there a fast method (with external tools with the web: for example ColorZilla, browser extension) to recognize the color in RGB (or CMYK) without to ...
0
votes
0answers
25 views

How can I copy a RGB value of a swatch or a layer to an adjustment curve

I need to change the color of the source to the Target swatch color, so I need the RGB values of target to be copied to an adjustment curve layer. There are scripts for copyong RGB values from INFO ...
0
votes
2answers
195 views

How to Export in both in RGB and CMYK in Affinity Design?

How do I export a logo in both CMYK and RGB in Affinity Design, provided that the Logo design starts with a template that is in CMYK? I mean when I start a new file, it asks me to choose the colour ...
3
votes
3answers
117 views

Pantone troubles

I see that Pantone troubles are quite common here, but I swear the more I read about it, more confused I am. :) Every time I have to prepare files or create a brand book these doubts come to mind. If ...
0
votes
0answers
169 views

Howto convert a RGB8888 png into a RGBA8888 png?

Does someone know how to convert RGB8888 png into a RGBA8888 png? I am using paint.net or paint, but I cant find any way to do so.
0
votes
1answer
79 views

Find a good colour match from an RGB to a CMYK / spot colour that will print well

I have a hex colour #0d152c, which is a corporate colour, when this is converted / printed in CMYK the colour doesn't convert well when printed and looks a bit washed-out because obviously CMYK has a ...
2
votes
1answer
335 views

Outer glow in CMYK vs RGB

I am creating this graphic in Illustrator and InDesign. It is using an outer glow with the same magenta color as the fill of the shape. Normal blend mode 100% opacity. I would like to get a similar ...
1
vote
2answers
211 views

Duotone psd file for (offset) printing

I read that answers at this question: Preparing design for duotone printing? I need it to be more specific about the step: use the complementary RGB channel, in this case Red (E) Play with the ...
0
votes
2answers
298 views

Why is my inverted black layer coming out grey instead of white, when using CMYK colourspace?

I have an RGB vector file with lots of layers, one of which is a bitmap containing a mixture of pure black pixels and 100% transparent pixels. This layer has a live invert filter, which changes the ...
2
votes
2answers
661 views

Converting Pantone to RGB

I need to convert my client's logo from Pantone to RGB. The first is Pantone 297. If I convert it to RGB, is it R130, G198, B226? How about the blacks? I am not sure what these percentages mean. ...
0
votes
0answers
93 views

Problem with colors when making a CMYK document

I'm making my portfolio and as I understand, everything that has to be printed has to be set in the CMYK color mode. So, I chose CMYK. I'm using Illustrator CC 2018. The file tab shows the information ...
1
vote
3answers
435 views

Alternative formulae for CMYK to RGB conversion for display on screen

I am writing software to extract text sections from PDFs and render on screen for analysis; I need to display the text on screen in the colour from the document. When the PDF contains CMYK colours at ...
2
votes
2answers
97 views

Match projected RGB to printed CMYK

We produce projected slides (RGB) and printed posters (CMYK) that sometimes appear adjacent to each other. We find that the same graphics looks very different in the two mediums. How can we adjust the ...
1
vote
1answer
136 views

CMYK image in Indesign changing RGB images on the same page to CYMK?

I'm using Adobe Indesign to write my Chemistry PhD thesis. I'm far from an expert in publishing/design, so please forgive me if this is a simple question. I am having an issue with an few images that ...
2
votes
3answers
938 views

Calculating average of two RGB values

Having 2 RGB values: 255, 23, 22 201, 18, 122 I want to average them, this link says that really I need to square them first, average, then find the square root. I've seen a few other points that ...
1
vote
2answers
157 views

CMYK values keep changing in RGB/8 colormode, CS6

EDit: The Image is in RGB mode and it needs to be saved as an PNG! I need to change the CMYK values of a logo to C:16%, M:100%, Y:79%, K:5%. But after I confirm these values, no matter what method I ...
1
vote
1answer
56 views

How are the images at AllRGB.com created?

The images at AllRGB.com have all 65536 (on 16-bit color depth) or all 16777216 (24-bit color depth images) colors in one image, not one redundant color and not one missing one. Each pixel has it's ...
1
vote
1answer
865 views

How to find the CMYK or RGB value of a commercial paint color?

I have a client who has chosen a paint color for their office and they want to carry that exact color onto everything from signage to website to business cards as their "brand color". Is there any ...
0
votes
1answer
992 views

Accurate RGB to CMYK conversion [duplicate]

I am trying to print out a simple picture (below) that is composed of sections of the following RGB colors: 255,0,0 255,0,255 0,255,0 0,255,255 0,0,0 I am using this image for color sensing (...
1
vote
3answers
610 views

RGB to CMYK conversion problem

There is a situation where I have to transfer colors in Hex Format (from an app) to Adobe Illustrator. But I need to extract the exact CMYK value (that was assigned in the previous app). Long story ...
0
votes
2answers
165 views

RYB or RGB when designing for the web?

After reading this article, I started to question if I should be designing websites taking into account the RGB wheel instead of the RYB. What wheel should I be using for color selection for website ...
4
votes
1answer
433 views

I select a color in Photoshop and it's painting another one

I select a color in Photoshop and it's painting another one. I've checked RGB color mode and everything, but it seems to continue to change the selected color. How can I fix it?
0
votes
2answers
127 views

gimp changed my image color after using color to alpha

I used color to alpha many times before with other images and it was perfect but when i try with this image it's give me a weird result that I don't know from where is the problem ? the original ...
1
vote
2answers
278 views

Can monitors show colors outside of RGB space?

Modern monitors use RGB to reproduce colors. The [RGB colorspace, however, is not the full range of colors, and only occupies a triangle in the "full" chromaticity diagram][1]. What colors are ...
1
vote
0answers
268 views

Adobe Illustrator | RGB vector looks all black when I import it to CMYK artboard [closed]

Colorful RGB vector I've downloaded from Vecteezy looks all black when imported to CMYK artboard. I can't change the color after importing to CMYK artboard either. How can I fix that? What I've done: ...
3
votes
1answer
252 views

RGB and Palette Colors in GIMP [closed]

I am learning GIMP since I've started to print my t-shirts. My question is how can I keep the colors of an image after Maximize RGB? For example for an image with a rainbow, I am taking out the ...
5
votes
2answers
144 views

Do Adobe RGB and sRGB assume 2 degree observer?

I know that Adobe RGB and sRGB assume D65 illumination, but do they assume a 2 degree or 10 degree standard observer?
2
votes
3answers
796 views

Should I alter my new logo to specifically use Pantone colors?

I’ve started at a new company doing 3D architectural visualization. Having a degree and background in graphic design, I’m now working with the marketing department to update and rebrand the company’s ...
2
votes
1answer
370 views

Fill color (Hex) value as variable to be used in data set?

I am trying to build out a bunch of icons with different 2 letter values as well as a different background fill color. I have the data set with a name, hex code color, and the 2 letters. Is there ...
1
vote
1answer
550 views

Changing colour mode of black in InDesign

I was under the impression that, to convert the colour mode of an InDesign document, you just had to modify Edit > Transparency Blend Space and change the colour mode of all swatches. But I've ...
0
votes
2answers
2k views

RGB to CMYK with best results

I'm currently designing a mockup for print but unfortunately the logo extends some colors that are only available in RGB. I was trying to convert a pretty agressive RGB green (#afff00) to CMYK but ...
1
vote
1answer
44 views

How to get a color scale representing reflected light

I got this wonderful image below from the Wikipedia page on Dodecahedrons. It shows a Tetroid rotating slowly. If you look carefully, it is clear that the assumption is that there is a light source ...
0
votes
1answer
2k views

Check colourspace in InDesign

So I've seen this answer on here: Indesign RGB color space But I'm wondering how do I tell what colourspace is currently applied to a document? I think the one I'm currently working in is set to CMYK,...
0
votes
1answer
109 views

Photoshop: how to create this glitché effect?

This effect is from Glitché iOS app. I tried various methods from dissolve (move RGB layers, copying many layers of one pic), distortion filters and still don't get something close to these pictures.
3
votes
2answers
31k views

Illustrator: which artboard size for logo design

Can you tell me what size of artboard should I use in Illustrator and also what kind of settings should i do like CMYK vs. RGB while making a logo. Going to use this for print mostly, but also ...
2
votes
1answer
32 views

Equivalent for gamma control in image processors lacking it

In GUI photo editors that have a control for "gamma", I find this helps a lot with fixing vibrancy/fade issues, without greatly distorting anything else. But several programs lack an explicit "gamma"...
0
votes
2answers
226 views

serious RGB to CMYK issue for book printing [closed]

I´m having a serious problem with RGB to CMYK conversion on my artwork. I create all my artwork in photoshop, using images of scanned fabrics to make collages. Most of my files have many layers. Up ...
1
vote
2answers
142 views

CMYK in notebook looks different in other media

I usually do my works in Photoshop in an Asus notebook. The problem that I'm having is that whenever I save a picture in CMYK format it looks fine everywhere I try to visualize it in my Asus, but when ...
0
votes
1answer
483 views

Is converting tiff (CMYK) to png (RGB) and back again lossless?

I need to convert a bunch of tiff (CMYK) images to png (RGB) to process them through a certain program, and then convert them back to tiff (CMYK) again. As far as I know, both formats are lossless. ...
1
vote
1answer
827 views

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

I'm originally industrial designer. Recently I have been designing a whole new branding for a start-up I'm working with, and obviously there is a lot I need to figure out still. Everything was going ...
2
votes
1answer
1k views

CMYK converted color from RGB looks off

I'm creating a brand, and I used a color as the primary color. When I went on to create a paper for print with that color, I copied the HEX value into Illustrator with CMYK mode and the color looks ...