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.

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2
votes
1answer
255 views

Choosing appropriate text color with given background

I have an image with green background, lets say #5F7642. I need to add small text in red color over that background. The problem is, usual red colors pretty much fade in with the background. I need ...
9
votes
1answer
753 views

Creating a color scheme that looks good on screen and when photocopied in black and white

I'm trying to create a color scheme for text headlines that will have distinctly different colors for each level of header, but will also print out mostly dark. I looked at http://colorbrewer2.org/ , ...
2
votes
1answer
832 views

Global color settings for illustrator / keeps switching to gray

Is there a setting in illustrator that will make all of my colors, in all new projects, RGB? I'm not really sure why it often ends up as grayscale. I only use RGB for web assets and having to change ...
1
vote
1answer
121 views

What's the math behind gamma in GIMP?

Inside GIMP, Colors -> Levels Click on the "Pick gray point" eyedropper (the middle eyedropper) and then click on a pixel in the image. Then go change to the Red/Green/Blue channels and you'll see ...
0
votes
2answers
1k views

Easier InDesign technique(?) = export JPG and convert to CMYK before printing

So I'm just starting to learn Adobe InDesign. The tutorials tell me to prepare my images and convert them from RGB to CMYK for print.. Now, I like to do rapid development and I kinda don't like ...
0
votes
2answers
2k views

(Illustrator) Why do the colors change when I “Save for Web” by using an action?

If I Save for Web in Illustrator, there is a very slight color change, which is to be expected. However, when I create a "Save for Web" action and apply it instead of directly using Save for Web, the ...
3
votes
11answers
29k views

How can I find out what RGB colors a website uses?

I want to learn the CMYK/RGB or any other details of a colour on a website. Say the side/background of this very website. I want to recreate that colour. Can anyone help me? Or is there any specific ...
1
vote
1answer
352 views

Maximizing saturation while converting CMYK to RGB

I have many designs prepared for print (CMYK), but now I need to present them on a projector. As projectors go, I know most of them have weak contrast, and many of my colors wouldn't be as accented as ...
0
votes
2answers
400 views

Photoshop: can't make red rectangle but RGB channel is on

Accidentally pressed something like ⌘ 5, and it must have changed the color channels. I made sure they are visible now, but the red is acting up. If I make the rectangle bright red it works, but a ...
2
votes
0answers
209 views

What is happening to my colorbar when I open Illustrator?

I usually create figures using something like Matlab or Python; then I use Illustrator for final touch-ups and things. Unfortunately, I'm having trouble with the colorbars when I open my figures in ...
1
vote
2answers
407 views

Is there a printing press that can print a book directly from the RGB space?

I have a book ready for printing. But, of course, it was done in RGB. In fact, I stretched the RGB gamut beyond its normal range in order to make it more painterly etc. When I saw it converted to ...
1
vote
1answer
970 views

Illustrator - Using an RGB transparency mask in a CMYK file

My file is CMYK, but it has a Link to an RGB PSD file as a transparency mask. The file renders properly in illustrator (the preview), but whenever I try to export to any other format, the colors are ...
0
votes
2answers
1k views

digital artwork design working in RGB or CMYK (or pantone) for printing?

I am running into a lot of problem on Design my artwork in photoshop in RGB. Then convert to CMYK in PDF format. Then when I print it with print company, Colors are not always right. I am not really ...
2
votes
3answers
3k views

How to use photoshop file in Indesign for print (having Pantone colors)

I have a question for you guys... :) I have Pantone Colors in my photoshop files. However, I am also using Indesign to do final composing and exporting of the design. I was wondering what is the ...
3
votes
1answer
7k views

Is it better to design in 16 bit mode in photoshop?

What is the ideal color mode to design in photoshop cross platform/ multi device product design? Default seems to be 8 bit mode, however 16 bit mode seems to hold more color information. What are the ...
1
vote
2answers
2k views

Fix colors after or before rgb to cmyk conversion

When I convert from RGB to CMYK in Photoshop as you know colors change saturation and maybe some hue. So basically what the title asks, does it matter when I adjust the colors and saturation via hue/...
8
votes
2answers
1k views

Does hue/sat/lum offer a smaller range of colors than RGB?

All values of RGB should be unique and distinguishable, meaning there are truly 256*256*256 colors. In HSL, however, if L=0 then H and S can be anything, but you still get the same color (black). ...
4
votes
4answers
15k views

Pantone color conversions

I am a bit of a newbie with using pantones and the pantone color guide. I am currently working on a branding project where we will have print material in both pantone and cmyk, and also on screen rgb ...
2
votes
0answers
33 views

How to make a black and white image print in CMYK as it appears in RGB on screen [duplicate]

In Illustrator (CS6/CC) I have an image that is black and white and looks really rich and deep in RGB on screen but after printing appears really gray and loses its depth. Messing about with settings (...
3
votes
2answers
3k views

Antonym / opposite of Pastel Color Space (Color Scheme?)

In color spaces we have the regular solid colors like solid red (#FF0000), solid green, solid blue, etc. ... Then when we add about 50% white ontop of it, it becomes a "pastel" color space... What ...
0
votes
2answers
22k views

Set CMYK colors in Photoshop

I have designed a Flyer using Photoshop. First with RGB colors, but I want to change them to CMYK. I use black, white and two pantone colors. Black is used for the text and there is the problem. I ...
2
votes
3answers
679 views

RGB to CMYK conversion — more than one way?

Occasionally a science journal asks authors to submit figures as CMYK (JPG or TIFF) for publication. When I have done this in the past, the colors in the figures end up looking very muted and washed ...
0
votes
2answers
220 views

Right amount of black for striped background

I am creating a PDF document that has a table with pyjama stripes. The grey stripes are defined using RGB with equal amounts of each colour. I'm want to make the stripes light enough so that you can ...
4
votes
4answers
4k views

Why are my converted CMYK blacks coming out grey?

I'm having a rather annoying problem! I have RGB images made in Photoshop that I need to convert to CMYK. When I save the file my black background is converted to a light grey! I tried deleting my ...
3
votes
2answers
719 views

Which RGB profile should I use for my JPG file?

I need to send a image as the title says. But the amount of RGB choices confuse me... There's sRGB built-in, sRGB, adobe RGB, apple RGB... I thought of choosing "Best RGB", is it okay...?
4
votes
3answers
1k views

A selection of colors that spans the range of the RGB color spectrum?

Below is a screenshot of a small application I am building. I would like to cover the most significant colors from whole color spectrum, but I am missing lots of colors. I don't get the intended ...
8
votes
1answer
10k views

What is HSB really?

Can any of my graphics designer friends explain HSB to me? I know it's hue/saturation/brightness and I know what those three do (for the most part)... I understand the algorithm of creating colors ...
9
votes
2answers
13k views

What's the difference between Monitor RGB and sRGB?

Since the output is web, RGB is choosen, but is there any difference between "Monitor RGB..." and "sRGB..."? In Photoshop, they are both under color settings > working spaces > RGB
2
votes
1answer
5k views

Adobe InDesign: how can I get the CMYK code from a color that I have saved in RGB in the swatches?

I'm making a work for school and I have to put together color palettes for some pictures. I also want to indicate the RGB and the CMYK code but when I get a color from a picture with the Eyedropper ...
3
votes
1answer
669 views

How to get RYB complementary colors in RGB imaging software

I am looking for a way to get RYB complementary colors in software. This means, complementary color pairs I am looking to get would be: red - green yellow - violet blue - orange However, when ...
1
vote
1answer
96 views

Proof printing for the web

I had this debate with a colleague and we didn't see anything solid or something from a search that would answer this with certainty so I thought I would open it here. You are designing a website or ...
20
votes
1answer
689 views

How to get standard results in colour management in Linux

I have recently calibrated and profiled my screen, with a ColorHug device. I'm using Gnome, and have the profile installed through gcm. When opening an image in GIMP and DigiKam, the results are ...
6
votes
4answers
1k views

Simplest set of inks that could print the RGB gamut?

Artist Tauba Auberbach produced this recently: It's called RGB Colourspace Atlas, and is a physical, printed book of what it implies is the whole RGB colour space. Is there an existing ...
2
votes
2answers
820 views

Why are my colours outputting so differently in Illustrator

Despite trying various colour profiles across Illustrator and CS5 I seem to keep running into save for web, export and screen-grabs (used as a more accurate last resort) issues where the colours I'm ...
3
votes
2answers
892 views

“Black text has been set up so it prints as 4 colours, rather than just black” - what?

I'm currently dealing with a printer, who I've been working with for a year or two. We've sent off to had one of our brochures reprinted - the same files as last time, except now they're having some ...
0
votes
1answer
2k views

Color palettes - RAL to hex or RGB

I'm looking for a way to transform the RAL color palette to hex or RGB so I can use the colors in CSS (all/any of them). Is there an XML file someone can point me to, or a database somewhere, that's ...
2
votes
1answer
1k views

Colour of gradient overlay changes when saving for web and devices in Photoshop CS4

I have an image with a linear gradient overlay (banner image on this page EDF Energy - Our Campaigns. I have set the RGB colour in CS4 to R: 29 G: 31 B: 79. However, when I save the file for web the ...
23
votes
10answers
11k views

RGB and CMYK: Why both?

Any of you who have at least little experience with graphic design software, photography or professional printing, must have -almost undoubtedly- have gone through this: 'the struggle' of RGB and CMYK ...
0
votes
1answer
142 views

Color space term? (RGB / I values)

I found ascii document with 3d data. It was said: ascii text file of point cloud with RGB / I values Here you can see part of document: 0.805, 10.301, -1.860, 165, 66, 65, 66 0.806, 10.311, -...
1
vote
2answers
775 views

How do I use a RGB image/layer with a Greyscale image/layer?

I'm using Photoshop CS4 and have a project where I'm using a layer/section of brushed chrome and another adjacent layer/section in charcoal carbon fiber (pattern) background. On the CF layer, I'm ...
3
votes
3answers
593 views

Getting an Accurate Colour Match in RGB

I'm designing a website at the moment. The client's corporate colour is PANTONE Black 2C (made up of 70% Black and 30% Yellow). Now, when printed it comes out very dark but with a hint of yellow. ...
5
votes
3answers
19k views

Is there a freely available CMYK color chart that I can print on press and work with?

After reading the answers to my previous questions, How does a monitor display the CMYK color? Is it actually showing the true CMYK color? I'm very much convinced that I need to profile my monitor if ...
10
votes
3answers
24k views

How does a monitor display the CMYK color? Is it actually showing the true CMYK color?

Suppose I'm designing something for printing purposes. Then I need to stick with CMYK model. When ever I'm choosing color while designing, I'm setting color based on what my monitor shows me as CMYK. ...
5
votes
2answers
28k views

Problem converting color from RGB to CMYK for print

I designed a poster in CorelDraw X5 for printing purposes. I was told by the Printshop guy to use colors only in CMYK. For the most part I did, I don't know why I missed it but I used one color in RGB ...
3
votes
2answers
4k views

Converting bar code to CMYK “True Black”

I have .tiff. Part of the .tiff is a bar code. My printer is insisting the bar code be converted to 100%K - CMYK "pure black". (Their words) A couple obstacles: The Bar Code has been scaled up. ...
8
votes
1answer
7k views

If I make a design in RGB mode and then change it to CMYK how will it look when it's printed?

I'm making a business card in Photoshop and it needs to be in CMYK mode. Now, I'm using a logo on it that I previously made for the client in RGB mode and when I put it into the CMYK mode business ...
8
votes
4answers
108k views

how to change the workspace color window from RGB to CMYK mode in Illustrator CS5.1?

I'm using Illustrator CS5.1 and started a new document in RGB mode. When I change the color mode to CMYK under File > Document Color Mode > CMYK Color, the Color window in my workspace doesn't ...
4
votes
2answers
2k views

Colouring illustrations - RGB or CMYK?

I am in the process of colouring a series of hand-drawn illustrations in Photoshop using a graphics tablet. The colouring process takes place mostly using Photoshop's native drawing tools - the pencil,...
4
votes
3answers
10k views

PANTONE and color conversions

I have been given a standard color palette. The colors are defined in terms of PANTONE #### X for example PANTONE 1234 C. Followed by their CMYK, RGB and HSB values. Another page defines ...
0
votes
2answers
1k views

Photoshop CS4: PDF subsequent saves toggle between dark and light black output?

I'm working in several CMYK .PSD documents. Whenever I save them as .PDF, the first PDF generated always appears as a more rich RGB-looking black (on-screen at least). Changing maybe a few non-color-...