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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1answer
215 views

Preparing In Design facing pages bleed and color for print

Hi guys I have a problem with my printer complaining all the time that the images in my doc are RGB and bleeds are not good. Do you know how to check if all my images are Cmyk and how to set up bleed ...
3
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2answers
1k 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 ...
3
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1answer
42 views

Multitone-duotone conversion to RGB

I'm using photoshop and I want to export some multitone-duotone file (.psb) to rgb jpeg. But I cannot convert it from Multitone to RGB without a radical change in my colors. (see the image below) I ...
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3answers
134 views

One RGB color could only match single one HSL color?

I am wondering if there is single one matched HSL color for a given RGB color? Based on existing formula converting RGB to HSL, it is yes. However, I want to know if my assertion above is true?
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1answer
66 views

How to change color of product in a picture

I have a picture of Jacket, the color of jacket is black. I want to change the jacket color to white. Here is the picture How can I change the color of jacket ? Please help.
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1answer
353 views

InDesign: Convert RGB to CMYK for clean gray colors

When I convert gray color swatch from RGB to CMYK InDesign transmit that as a mix of C, M, Y, K. How can I convert that values to K only? The goal is to get clean gray colors on print output. ...
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2answers
84 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 ...
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1answer
51 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 ...
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0answers
27 views

Why is my EXR showing up lighter than expected in Photoshop?

I have a 32-bit EXR image that's supposed to show the following color: r: 0.5 g: 0.5 b: 1.0 each color channel is in the [0, 1] range. When I open the EXR file in Photoshop, this is what I see: You'...
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1answer
52 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 ...
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1answer
62 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 ...
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2answers
75 views

Change in colors on different screens

So, I created a project in Illustrator and when I uploaded it on Behance the color appeared way off on my mobile, like the pinks changed to browns. It's appearing fine on my MacBook screen but in all ...
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5answers
12k views

Color mixer that can mix 3 or more colors?

I'm looking for some sort of service, tool or application – even manual techniques – where you can digitally mix/blend 3 or more colors (i.e. not 2 as in most applications out there) and get the ...
2
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2answers
4k views

Replace color for all layers

I have a file with about 500 layers, and I need to replace a color in all of them. I looked through different solutions here and elsewhere, and they all suggested using an adjustment layer or ...
2
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1answer
45 views

Colour maps for visualising sparse points against black background

I would like to visualise sparse 3D points against a black background. Each point is associated with a brightness value. I would like a colour map to display these points in a visually appealing way, ...
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0answers
36 views

Inkscape colors wash out in conversion from .pdf to .eps

I need to convert some academic graphics to .eps. I don’t have the option of using a different final format. In Inkscape most of the graphics files convert fine. In one the colors selectively wash ...
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1answer
80 views

Why do my prints always produce a magenta tint? Is there a more calculated approach I can take to my print prep?

I photograph and colour correct oil painting photographs I shoot in Adobe RGB and print on a latex printer with the company's ICC profile (I don't know if I have to embed it into my photos or the ...
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1answer
122 views

How to find a color within area in CIE 1931 color space

Color should fall within an area defined with coordinates in CIE 1931 color space as stated in CIE 39.2 - "Recommendations for Surface Colours for Visual Signalling". The area is described ...
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1answer
59 views

Converting colour space to RGB

I usually use the colour bridge coated guide to get a match between my cmyk and spot colour. The problem is I find the RGB colour match in the bridge book (which im aware is a conversion from the ...
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0answers
29 views

Color to 12 shades of Grayscale conversion & Grid overlay

Thanks for reading my post. I would like to create a grid drawing, like the ones done by Chuck Close. This uses a system where an existing photo is transposed/painted by hand to a much larger canvas, ...
3
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4answers
1k 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 ...
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0answers
40 views

How do I keep the original color of a vector when exporting?

I made a vector on Adobe Illustrator (v 24.1.2) and when I export it as a JPG or even if I open it as a PDF I notice I lose alot of the color. How do I prevent this from happening? Eventually I would ...
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3answers
109 views

Converting picture to vector formats

I tried to convert a model drawing to vector format (dxf) automatically with programs such as CorelDRAW, AutoCAD, etc. but it fails due to gray tones near to black lines. I thought if I used ...
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2answers
45 views

Any tool or tricks to convert the image colors into the colors of another image?

For example you have these two images Your image that you want to change its colors: And the image where you want to based your image colors: The output image should be the first but all its pixel ...
2
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2answers
198 views

Change multiple png sprite file color to another color

I have a sprite of 100 png files. This sprite file contains two colors only. Grey and blue. Which software or application would someone recommend where i can rapidly change the two colors of these png ...
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1answer
32 views

Is it possible to review the ink management options I chose in a cPDF?

For creating certified PDFs, I use multiple settings like PDF standard, as well as colour conversion into FOGRA profiles. When working in a strict identity, I use 'preserve numbers' to keep the exact ...
10
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4answers
5k views

How to flip Brightness and preserve color in Photoshop?

as the title is saying. Using Photoshop, I want to invert the luminosity of my image using adjustment-layers, while the colors stay the same. So here is my example image: Dark Background (it's ...
2
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2answers
404 views

Transformation between the hue color wheel and Itten's color wheel

Unfortunately, the hue color wheel does not correspond to human visual perception: Equal differences of the hue angle are perceived as different color differences. E.g. yellow takes only a small range ...
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1answer
77 views

Gray values different between grayscale and RGB color modes?

I'm trying to understand the different numbers I get when I convert an image from grayscale to RGB or vice versa. I'm only working with grayscale values at the moment as I'm working on a heightmap but ...
5
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4answers
56k views

CMYK to RAL or PANTONE conversion

A client needs to produce a large logo for their front office and the production company requires us to convert the CMYK 40,48,77,17 to RAL or Pantone. I have never been faced with such a request and ...
2
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1answer
826 views

How accurate is pantone conversion in Illustrator and how should I send “Pantone References” asked by the printer?

I've been hired to do a big campaign that requires all sorts of permutations of an Illustrator design. Most recently, I was asked to make a banner. The printer wants my Illustrator file (no pdf) in ...
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0answers
50 views

Open source PDF to grayscale conversion tool

I need a PDF (vector) to grayscale conversion in Linux CLI. Any open source tool to achieve that task? I have already tried ghostscript for that task grayscale conversion was happen but fonts are ...
4
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4answers
64k views

Photoshop: how to change from RGB to CMYK without any color loss

I have an RGB PSD document with 300 dpi resolution. Basically I designed it to print as my business card. When converting this from RGB to CMYK, my original colors are changing. Is there any way to ...
17
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2answers
9k views

How to make a color appear the same on different backgrounds?

Background on color perception: Due to the nature of the human eye and visual processing by the brain, there's an optical illusion that the same color will look different depending on the background. ...
5
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1answer
748 views

Text over background colored getting a weird yellow border

I'm working on a logo using illustrator. I just put a black text over a red shape and my text is getting a boring yellow border around it. In this case, shape is red, but whatever the color I use, ...
3
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1answer
2k views

Pantone Color Bridge vs CMYK Color Guide

Color Bridge Coated vs CMYK Coated What is difference in CMYK colors from Pantone Color Bridge with colors from Pantone CMYK Color Guide? What does the CMYK color simulation mean in Pantone Color ...
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6answers
2k views

How do I ensure a CMYK cyan that works in Red-Blue stereoscopic printing?

I've been given a solid black design that I have to print in a manner which is view-able through 3D red-blue stereoscopic glasses (Old school 50's cinema type) When I offset the design into Red-only ...
1
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1answer
358 views

GIMP (or others): How to remove background (by color) of several images in one step?

I have a set of about 200 PNG-images in like that: Only black and white, no colors, no grey. I need the background color (white) to be removed and tried to do so in macOS Preview (with that Instant ...
4
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2answers
277 views

How to do 64-page magazine that has 2-colour run and inserts that have 1-16 Roman numerals in?

I am using InDesign CC 2015 on MacOS Sierra. Currently, I am creating a magazine that has 64 pages in total, with pages 5-24 and 41-60 on newsprint, and 2-4, plus 61-64 are on glossy paper, with 16 ...
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1answer
93 views

How to change set of color by another CorelDraw

I need to change set of colors by another one in CorelDraw. For example: I have red shapes and I need to change all red color by same green colors.
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1answer
165 views

Conversion from CMYK to RGB - everything becomes greener (sometimes)

I am working with a publisher (Oxford University Press) and they require images to be supplied as CMYK. That's ok - Colour accuracy isn't 100% important. I prepare my figures using RGB, then convert ...
1
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1answer
319 views

How to correctly save a file to CMYK and PMS formats?

I finished my new logo and always I make a logo, I pick CMYK format, thinking on print and vector first. I created a color scheme using Adobe Color by setting up the HEX values. As you may know, Adobe ...
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2answers
1k views

Should we increase saturation and brightness on CMYK colors?

I already heard that when we're gonna pick a correspondent CMYK color from a RGB one, it's "recommended" increasing saturation and brightness in order to get a better printing result, because every ...
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0answers
20 views

How to determine a starting hex value to which I can apply opacity and get a desired color?

I'm starting with a brand color: #18C1E0 In our product, I'd like to have an object with 25% opacity that still has the appearance of this color (#18C1E0) on a pure white background. How do I ...
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4answers
726 views

InDesign: how to link PNG files for CMYK printing

I have an issue with PNG FIles in Indesign and could not find an answer anywhere...maybe I am stupid. I placed various PNG Files with transparent background in INDESIGN = good. When I export as PDF ...
5
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2answers
411 views

RGB palette to predetermined CMYK palette in InDesign and/or Illustrator

Happily this isn't yet another "why do my RGB colors look different in 4cp output" question. But let me admit that I may be missing something obvious here. I am working with InDesign and Illustrator ...
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3answers
6k views

Sketch: How to change the background color of an image?

I have a PNG I downloaded from the internet / shutterstock: It's a PNG, however the background is white. Is there a way I could remove the white background in Sketch and replace it with a different ...
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2answers
85 views

What CTA color would work best?

I am just getting into UI design. I have a site I am working with right now whose primary color is #ffb606(yellow). All of my CTA's are yellow with white text. I need to change the CTA color but I am ...
10
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7answers
816 views

Convert to four hues while preserving values/brightness in Photoshop

I would like to reduce the number of hues in my flat image from the full range to only four, but I would like to preserve the value/brightness (and if possible, saturation as well). I want four hues ...
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3answers
2k views

How to find RGB or HEX for Pantone colors for graphic design?

The client gave us the Pantone color codes. These are used on health supplement product packets printing. But the codes can't be used on social media designs. Is there any way to find the HEX or RGB ...

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