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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.

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Is it possible / how to revert color conversion of PSD file to PNG/sRGB?

I got PSD file, then made a lot of edits to it, then accidentally saved it to PNG file with an option Convert to sRGB checked (default). Now I see some colors are slightly different from original. Is ...
Dims's user avatar
  • 655
1 vote
2 answers
92 views

How to find a single RGB color triplet from an antialiased raster image?

My (scientific) collaborator sent me swatches of the three colors ("red," "green," and "blue") shown below. Unfortunately, it is a raster image and the lines are ...
Andrew's user avatar
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2 answers
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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
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1 answer
51 views

Is there any way I can get my cyan printed correctly?

I am writing a book about indefinite integration and I want to use some color (especially in graphs). So, I figured I would use my favourite color, which is cyan (#00FFFF), and in the computer it ...
Mitsos YT's user avatar
1 vote
3 answers
122 views

ISO a simple web tool to approximate on screen, a printed color

My question is almost too unsophisticated for this site, but I need only a simple answer, not a perfect one. I know if I create something that's blue, it might look darker (purple?) when it's printed. ...
David H.'s user avatar
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1 answer
131 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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1 answer
78 views

How to find the second color in a blend of two RGB colors?

I would like to restore the original color from a blended RGB color, using a known RGB color. How can I find it?
Velcro's user avatar
  • 141
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0 answers
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How to set up and export illustrator file for a huge digital billboard?

photos are much bigger than the pixels artboard and need the finale saved jpeg to be 1MB. When setting up illustrator file for a huge digital billboard what the best way to save and export the file?
Jenny's user avatar
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4 votes
4 answers
690 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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1 vote
1 answer
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Selecting colors for print design

I'm designing a brochure to be printed, so I'm using CMYK color system to design the brochure. I bring all the colors from this website: https://mixam.co.uk/support/cmykchart So I don't pick colors ...
kareen ramzi's user avatar
1 vote
1 answer
133 views

How to find translucent colour from the background colour and fused colour?

I need to find the rbg values and opacity of a colour that is translucent. I have the RGB values of the background colour and the fused colour. As you can hopefully see in the image above, I'm ...
Proto's user avatar
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1 answer
598 views

Preparing RGB files for print

The printing company that I use prefer all files to be supplied in RGB. The only problem for me is accidentally picking a colour that is too bright. Is there an easy way around this? I recently heard ...
mttpl's user avatar
  • 105
2 votes
2 answers
787 views

Issue with color profile of CMYK image

TL;DR I'm chasing a color problem that occurs for one of our images. That image appears in different green tones in different viewers. The source image Notes Most image viewers will render it light ...
agoldev's user avatar
  • 73
0 votes
1 answer
136 views

Is there a program or tool that can determine the alpha value of a color given it's background and foreground color

I have a color that has a HEX value of 180031 or rgb(24, 0, 49). However, the color is supposed to be a shade of purple with a black background, but I don't know what the alpha value is. Is there a ...
Throwaway1942's user avatar
11 votes
4 answers
4k views

Should Pantone colors outside the RGB gamut be avoided?

A product or graphic design can exist either in the form of a physical object/print or on a digital screen, which is where most people today consume media. Therefore, when specifying colors it's ...
jrw's user avatar
  • 119
-1 votes
2 answers
237 views

Getting all hex colors to export to png

I'm doing something kinda silly where I actually do need all ~16mil RGB colors. I do know how to do them separately, one by one, but I can imagine that taking quite a long time to do it manually. This ...
leguchi's user avatar
  • 177
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0 answers
27 views

Colour in illustrator is only bright when selected

I have pasted some gaussian blurs that i created in another illustrator file to this file, but for some reason the colours are very blurred and only bright when i select them with my mouse - how do i ...
Sonia's user avatar
  • 9
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
3 votes
2 answers
453 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
318 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
1 vote
0 answers
27 views

Program, Site or plugin to find a RGB code in an existing image file to see the location of the RGB

I have a .bmp image file containing about 3000 unique RGBs to make tiles for a game, the game has a separate file defining the RGB of the tile but when working with them it can be hard to pin down ...
JmanThunder's user avatar
0 votes
0 answers
1k views

Changing color after I save SVG in illustrator

I am working with Adobe Illustrator, and my company has given me this mascot file. But the problem is that whenever I am saving this file as an SVG it is changing its original color. Please see the ...
Sumit Yadav's user avatar
0 votes
1 answer
252 views

Shift white to a color like the hue tool can

I have an image with a lot of white with intricate transparency. Basically it's like this example but white [used black background for visibility, click for more accurate example]. I want to ...
Stormblessed's user avatar
0 votes
1 answer
67 views

RGB and CMYK Colour Modes

I designed a book cover in Photoshop in RGB Colour Mode, as it was going to be used as an eBook cover. However, I now need to design a full wrap book jacket which needs to be in CMYK Colour Mode. When ...
Hannah's user avatar
  • 1
0 votes
1 answer
943 views

Converting an RGB 300 dpi image to CMYK it changes DPI to 72. How can i keep the same DPI? [closed]

thank you for your replies. I am new here and i didnt explain correctly. So let me explain better the situation. TASK (What i want to do) The initial file is .png and has these settings: 333 dpi, ...
the_observer's user avatar
0 votes
3 answers
2k views

Conversion from RGB to CMYK loses mesh gradient transparency

I purchased and adapted a vector graphic in RGB that I want to send to a printing bureau. The directions state: When uploading: Convert text to outline Remove template lines before saving Keep the ...
emonigma's user avatar
  • 699
0 votes
1 answer
269 views

Calculation of RGB colors based on a sample color with darker and lighter variants

I have an icon which utilizes 3 variants of the same basic color (at least it seems). This is the basic color: #7646be: 1st variant (darker version): #582299: 2nd variant (lighter version): #c4acff: ...
Daniel's user avatar
  • 365
0 votes
0 answers
50 views

Print color mode and print flier size

Am using coreldraw X7, so can I use RGB color mode for print fliers, CMYK is actually producing dull colors which I don't like and also what is the standard size (in inch) for print fliers...
Zimuzo Kingsley's user avatar
6 votes
3 answers
2k views

GIMP: what are the 'linear space' and 'perceptual space'?

I want to analyze the color distribution and statistics of my pictures in GIMP. There are two spaces to view the colors, the 'linear space' and 'perceptual space'. What is the precise definition of ...
Haruto.S's user avatar
0 votes
3 answers
77 views

Will sRGB values stay the same value even if they look different on various displays?

I was wondering, if I made an Illustrator artboard and colored the entire area red with the value ff0000 (for example's sake) and export it as an sRGB png, will it still retain the same color value ...
Benicio'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
1 answer
218 views

Soft proofing a duotone separated image in Photoshop

I need to prepared B&W images for 2-color offset printing. The print company advised to use 2 × blacks (one neutral black and one slightly warm tinted black), to get really appealing blacks in ...
Arno's user avatar
  • 11
0 votes
1 answer
119 views

For what "A" in "CMYK(A)" and "RGB(A)" stand for?

I ran across these abbreviations while studying GIMP documentation. I know the meaning of CMYK and RGB, but I assume A stands for "Alpha"? No help from Wikipedia.
Mirza Beglerović Raven's user avatar
1 vote
2 answers
699 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
2 votes
1 answer
791 views

Linked smart objects and colour profiles

Do linked smart objects need to be the same colour profile as the master document? A bit more info: I have spot illustrations that I've created in CMYK which are linked smart objects. The client wants ...
Clair's user avatar
  • 33
0 votes
2 answers
510 views

RGB to Grayscale without adding noise

You can convert an RGB image into grayscale in Photoshop easily. Here's a swatch of 16 colours. The values of the colours are important. However, later versions of Photoshop add noise to the image. ...
Ghoul Fool's user avatar
0 votes
0 answers
46 views

Logo Color in RGB Help

I have a style guide for an old company logo which we had designed years ago. In the guide there are the two main colors for the logo but only PMS and CMYK values, so i'm wondering how to figure out ...
Steve's user avatar
  • 1
2 votes
1 answer
281 views

Printed Text in Word a lot better than in Photoshop

I am porting a design that has been sent to me in Word to Photoshop. One part of the design contains a text with the font Bacalisties When I try to print the original word layout to a white paper, the ...
Miguel Mesquita Alfaiate's user avatar
4 votes
1 answer
291 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
0 answers
769 views

How to accurately mix RGB colors

I'm a bit of a newbie here but if anyone knows the method to combine two RGB colors and get a precise result (additive).
Beaustroms's user avatar
0 votes
3 answers
2k views

Why do my pinks, blues, and purples become gray and washed out when printed?

This is for printing on acrylic instead of paper, so I don’t know if the printers are different. I sent my design to a company in both an RGB and CMYK format. But in the preview they showed me, both ...
Hubert Tyrone's user avatar
7 votes
2 answers
45k views

How to check if a PDF file is in RGB or CMYK?

I have sent a PDF file to a printing company and they came back telling me that it is in RGB but should be in CMYK. It is strange as I really tried to make everything in CMYK (working with Adobe ...
Bart's user avatar
  • 81
0 votes
2 answers
2k views

Mapping 3D RGB color-space to 1D Visible light wavelength

I wonder how to make a 1-to-1 mapping between the 3D RGB color-space and 1D visible light wavelength (nanometers)? I have shown their images below: I mean if I want to know what is the RGB color that ...
scico111's user avatar
  • 101
-4 votes
1 answer
161 views

What's the Hex or RGB color for these buttons [closed]

I've been trying to find the hex rgb color code for color being used for these buttons. Specifically, the very firts button with rounded corners. I've been searching colorswall.com or other similar ...
user2220115's user avatar
1 vote
1 answer
941 views

Blur effect becomes grey-ish and colours flat when transformed into CMYK

I need your help. I am trying to convert my RGB poster into a printable CMYK poster. But when I change the "neon like" headline to CMYK colours and the document color mode in illustrator the ...
ida_design 's user avatar
1 vote
2 answers
232 views

Match screen colors to printed colors (not vice-versa)

I have a book detailing different color pallets of traditional Japanese colors, and I want to use one of these color pallets in designing a website. The issue is, the book lists all the colors in CMYK,...
Ben's user avatar
  • 121
0 votes
2 answers
674 views

RGB to CMYK color in printed books [duplicate]

I write and illustrate children's books. I scan my illustrations to jpeg and then create the book in InDesign. The proof always looks great but the printed book illustrations are awful. I have tried ...
Lenett Shirley's user avatar
1 vote
1 answer
239 views

How can I change CMYK and Registration colors to RGB in Scribus?

I need to convert all of my file's colors to RGB. Most of them are already RGB. There are 2 CMYK and 1 Registration. I can edit the RGB colors into CMYK with the Edit button, but not the other way ...
Milena Chávez Aguilera's user avatar
-1 votes
1 answer
103 views

What iMac colour profile provides stable colour palettes with Microsoft 365 for Mac?

PROBLEM: I designed a custom Powerpoint theme on Microsoft 365 for Mac. It appeared to save but when I reopened the file, the RGB value of one colour changed by a value of 1. (R=98 dropped to R=97) I ...
user153206's user avatar
4 votes
2 answers
194 views

Trying to get CMYK look in RGB profile, it is possible? This is not RGB to CMYK problem

this is my first time here. I work for a magazine that is online and in print. We have the problem that the online versions are much more vibrant than the printed versions, and we have received some ...
Mariano Silva's user avatar

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