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
7 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 ...
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1answer
17 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
10 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
48 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 ...
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1answer
91 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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0answers
19 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 ...
3
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2answers
341 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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4answers
80 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 ...
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1answer
66 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 ...
5
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2answers
220 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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2answers
77 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 ...
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3answers
220 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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1answer
42 views

Which one of 'Convert colors' and 'Map colors' Fixups are unnecessary?

I'm using Adobe Acrobat to change colors in a PDF. Using merely 1 Fixup is obviously easier than 2. So is one Fixup a subset of the other? To wit, which is more all-encompassing? Which Fixup can I ...
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1answer
35 views

How would I change the grey shadowy part of this image to white?

I have this image: I'm trying to: 1) cut out the napkin 2) make the white more pure This is what I've done so far using the magic wand to select, white point and curve adjustments As you can see, ...
2
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2answers
101 views

How would I make this yellow more golden without affecting the white background?

I want the white to be pure, but I think I'm turning the gold foil too much into yellow in the process of changing the brightness / saturation. Here's the original: and what I have currently: As ...
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5answers
3k views

Is there a loss of quality when converting RGB to HEX?

The graphic designer sent me the colors in RGB, I know I can convert to hex easily, but last time I tried to do that, RGBA to HEX on another website I noticed a slight difference so I ended up using ...
2
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0answers
64 views

RGB to CMYK conversion of mid-grey colour

I have a logo which has been designed using RGB colours. Part of the logo is in grey and the colour use for this is a middle grey, R127, G127, B127. Several online colour scheme generators convert ...
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0answers
21 views

Paint.net: How to change a heightmap from a red-green scale to luminosity scale?

I have a piece of software that exported a heightmap where the peaks are in a deep red, and the shallowest swamps are in deep green, with yellow in between, all on a smooth scale. If I convert to ...
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2answers
542 views

Converting an RGB image to CMYK with a specific black? (Photoshop)

I would like to convert a lot of RGB images to a CMYK where the black is 20, 20, 20, 100. By making a custom CMYK and using separation type GCR and 22% UCA I can get pretty close. But I can see on ...
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4answers
1k 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 ...
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1answer
64 views

GIMP; Transfer source tonal/color profile to a second image

In GIMP, is there a programmatic/algorithmic way to transfer the color/tonal profile of one image to another when they have similar subjects? I have this image: And then this image: Similar ...
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1answer
76 views

Script: Change color Saturation while maintaining L in LAB model

For example, I have a red color #633b3d (Saturation: 40, L: 30) and I want to transform Saturation to 80 while maintaining L (resulting color should be #83211b). If I simply change foregroundColor.hsb....
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2answers
119 views

How to invert colors of a picture on Mac? [closed]

How to invert colors of a picture on Mac? I'm using macOS 10.13.
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2answers
512 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 ...
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0answers
22 views

Find color where alpha at value `a` equals a given hue [duplicate]

I want to achieve a certain hue but also have the color that carries that hue contain a certain opacity. For example if I were after #ff0000 with 50% opacity, the color I would want to identify is ...
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2answers
39 views

How to single out colors when adjusting the curves?

I am trying to edit the colors in this picture so that 1) the yellow letters in "Thomas Jr" pop out more. Currently they are too bright and disappear into the white background. 2) The white looks ...
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3answers
180 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 ...
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1answer
123 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 ...
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1answer
286 views

Why png image loses color? [closed]

I have provided the client a logo (black and white) for Instagram in png. According to the client when he uploaded png image, the black part of image changes to green. Can anybody tell me why this ...
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0answers
22 views

Color conversion - 3rd Party app is modifying color space

Overview: Ideally one would put in the color one wants (say 153,0,0) and get the same output but that's not what's happening. I'm working with a third part application that changes the opacity (I ...
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3answers
126 views

How to make this shade of white look less “dirty”?

I have a picture of a blanket: When I try to open up the Color Adjust panel on Sketch and try fooling around with the brightness and contrast, it makes some of the parts look overexposed. Is there a ...
2
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1answer
449 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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2answers
190 views

Brand color not available in cmyk

I have my own brand but everything I have done so far has been rgb. I wanted to get started printing some business cards but the color that our brand uses isn't available in cmyk and turns into a very....
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2answers
112 views

Color scheme trasformations

Given a set of colors, say colors on this webpage, and another palette of an equal number of colors, what would be a good way to map the former to the latter while: preserving contrast between ...
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3answers
108 views

How to remove color areas from an image?

How I can remove all color areas from an image? I don't mean desaturate. Desaturate turns color into gray. I want to turn any color into white, and preserve any existing grays and blacks. For ...
0
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1answer
388 views

How do I change color but keep tint in illustrator?

I have an illustration made of several parts. All parts are the same spot color (some Pantone color) but they are different in tint. I know that I can select them all and go to Edit > Edit Colors > ...
1
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1answer
68 views

Handling inversion on black and white photos in Photoshop

I'm looking to recreate a similar black and white effect to the dome in this casino token. It's the Capitol Building in Austin, Texas. I've looked at a variety of different images of the dome, in ...
2
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2answers
1k 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. ...
2
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3answers
740 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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1answer
245 views

Change a specific color in an area

I have this image, a PNG file: Question: I want to change one of the logo's color to be more visible than the others. The color I want is australium gold rgb(231, 181, 59) These "logo's" represent ...
2
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0answers
148 views

Color management: how do I make Gimp handle gamma conversion in this png file?

This image is shown as an apple in Gimp, although if gamma is handled correctly it should show a pear. What steps should I take in Gimp to make it handle the gamma correctly? I've tried with the ...
1
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1answer
1k 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
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1answer
1k 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
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3answers
777 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 ...
1
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2answers
306 views

CMYK to PMS - which PMS color should I use?

I am developing brand guidelines for a particular sub-brand where I work. Certain details are specified with a rich black, which is a CMYK mix of C10, M10, Y10, K100. Mostly process printing will work ...
4
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1answer
434 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?
3
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0answers
312 views

Should you convert or only assign a color profile when wanting to preserve color appearance?

Context: I am preparing a design to be sent off to a professional printer. I will print the exact same design on both coated and uncoated paper, requiring FOGRA39 and FOGRA47 respectively. In ...
0
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1answer
144 views

Changing color using hue is creating unwanted border

I have an image with green and blue stones: I want to change all the green ones to be blue as well. Currently I'm following this tutorial: https://www.youtube.com/watch?v=n9fwiNyDHLI It says to: 1)...
1
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1answer
79 views

How to make a screenshot from Corel 2017, without converting through my monitor color profile?

My goal is to (temporarily at least) get reliable colour values on screen and in my screenshots, in CorelDRAW 2017 on windows. If I screengrab and paste into eg GIMP, the colours shift. I think what ...
1
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0answers
344 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: ...