48 votes
Accepted

How does one generate a palette similar to the ones in Google's material design?

I made this little CSS3/AngularJS tool for a project to generate Material Colors palettes. You can enter your 500 hex color and use an external tool like ColorZilla to get the color values from there. ...
  • 596
40 votes

How are the publishers able to print book covers in neon colors?

Simply they do not print with CMYK, instead they use spot colors. Spot colors are pre mixed inks and require a printer to print with one more ink. Its a bit like going to a paint shop and ask for a ...
  • 56.1k
28 votes
Accepted

How to make my logo color look the same in Web & Print?

here is the technical answer Saying that the color is #dd0017 is meaningless, unless it is paired with information about what color space you are using! Therefore also conversion from #dd0017 to CMYK ...
  • 56.1k
23 votes
Accepted

How to convert color images to black & white in GIMP?

There are several ways of doing it in GIMP, and it depends on the end-result you want. From your question, one can't know if your desired result is really a "black and white" (only) image, or a ...
  • 4,989
23 votes

When designing a website, how do I know how users see the colors?

Short answer: you don't. Longer answer: it's literally impossible to take into account all screen settings and calibrations, circumstances and visual (dis)abilities of viewers. That is why there are ...
  • 24.7k
23 votes
Accepted

Why is Photoshop changing my CMYK numbers?

You have "Only Web Colors" selected. Turn that off as its essentially irrelevant on modern computers. It's trying to figure out how to best represent 50% K in a vastly reduced RGB palette known as Web ...
  • 23k
20 votes

How does one generate a palette similar to the ones in Google's material design?

The google palettes are monochromatic. Which keeps the same RGB ratio shifting the Lightness and saturation up or down. To do this you have to convert the RGB value to HSL representation (Hue, ...
  • 1,010
19 votes

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

Sadly, these very saturated colors can't be reproduced in CMYK. You could try to make the image in CMYK mode, where you make sure that the red is CMYK(0, 100, 100, 0) and the cyan is CMYK(100, 0, 0, ...
  • 19.6k
18 votes

How are the publishers able to print book covers in neon colors?

There is a lot to unpack here. An illustrator made a beautiful cover for me in neon, but when we converted the cover from RGB to CMYK what was neon became matte. No. He did a beautiful cover for you....
  • 34.2k
13 votes

Photoshop automatically corrects my color

... if I try to assign a text the color #00FFFF it automatically sets it to #6FCCDC instead of converting it to CMYK. It is converting it to CMYK... CMYK and RGB have a different gamut, so ...
  • 40k
13 votes

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

Set the tool's blend mode to Normal before painting with it.
  • 201k
13 votes
Accepted

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

As Billy Kerr wrote, Hex is not a colour space, but a numerical system such as the decimal system, but with base 16. The differences you notice are probably caused by different RGB colour spaces (such ...
12 votes
Accepted

How do I convert an RGB black and white photograph to just CMYK black

Open your file into Photoshop, open the channels panel, you will notice that the black and white areas are presented in all RGB channels. Go to Edit > Convent Profile. In the convert to profile ...
  • 5,339
11 votes

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

I will only complement the other answers. RGB to HEX will give you the same exact color. RGBA to HEX, will not because we do not even know what is beneath the color. If you put another color the ...
  • 34.2k
10 votes
Accepted

How to change all pixels in Gimp that are not one of two colors to white?

Are you sure you need the GIF format? PNG would allow smooth edges with transparency. To edit the output colors you should first set your color mode to Indexed (Image > Mode > Indexed). For the ...
  • 2,964
10 votes

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

If you MUST use Cyan and you want something around RGB saturation then you need to work with paper. There are some that reacts very well to certain paints and give them extra boost. They are also ...
10 votes

When is it really worth it to convert RGB to CMYK (If printers do it anyway!)

The RGB gamut is larger than the CMYK gamut. It is exceptionally possible to have RGB colors which can not be reproduced via CMYK inks. Auto-conversion will use a "best guess". These guesses ...
  • 201k
9 votes
Accepted

Should I use Hex or RGBA when designing a website?

The browser doesn't really care which format the color is in, performance is negligible. As such, I'll focus on the decision's effects on the developer(s) and the use cases. A lot of developers find ...
  • 13.1k
9 votes
Accepted

How can I change a multi-coloured logo into a single colour logo in Photoshop?

For examples like the one in your question, you can use a Solid Color layer with a blending mode. Open the image in Photoshop. In the Layers panel, select the circular icon at the bottom to Create ...
  • 8,328
9 votes
Accepted

Is there a way to change the color of a .png object using Adobe Illustrator?

Note that a PNG in Illustrator is seen as one object. There is no mechanism to allow a user to color individual pieces of a PNG within Illustrator. You could use Image Trace to convert your PNG to ...
  • 201k
9 votes
Accepted

Text over background colored getting a weird yellow border

It's caused by anti-aliasing, used by Illustrator to display graphics without pixelated edges. However, anti-aliasing causes display artefacts when two colours butt up against each other. The problem ...
  • 76.9k
8 votes

How to make my logo color look the same in Web & Print?

Matching colours between screen and print is a complex and sometimes impossible task. Due to the nature of light (Screens, RGB) versus ink (CMYK, Pantones, etc) and the fact that pretty much every ...
  • 9,428
8 votes

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

No, you can't expect RGB colors to translate exactly to CMYK for printing. Monitors make colors with light. Light can be any intensity. Ink is made of solid physical colors from things like rocks, ...
  • 1,017
8 votes

How to change color of this icon?

Click on the Foreground colour square in the toolbar, and enter the colour as shown here, and click OK. In the layers panel hit the Alpha Lock button Do Edit > Fill with FG colour That's it ...
  • 76.9k
7 votes
Accepted

Convert to four hues while preserving values/brightness in Photoshop

As others have pointed out, the logic of this question is a bit flawed, but very interesting nonetheless. My answer is mostly based on RGB/HSB math and I admit that there are many questionable aspects ...
  • 19.6k
7 votes
Accepted

How to create a "painting by number" picture in photoshop?

This will be hard work in Photoshop, but fairly straightforward if you have access to Adobe Illustrator... In Illustrator, you can use the Image Trace function to turn an image into paths. This used ...
  • 9,428
7 votes

delete half transparent pixels in image

In the Layers panel, Ctrl+click (or, if on mac Cmd+click) the layer thumbnail to turn its transparency into a selection. Use Select > Edit in Quick Mask Mode to enter Quick Mask Mode. Use Image >...
  • 19.6k
7 votes

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

When printed, the RGB color that came from CMYK will be converted back to the same original CMYK color Nop... It will not. There are several reasons. Color profiles, changes in gamut, simulations on ...
  • 34.2k
7 votes

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

No. There is no loss converting decimal RGB or RGBa colours to hexadecimal. Forget online converters In RGBa images, colours require 4 decimal or hexadecimal numbers, one for each channel. Each ...
  • 76.9k

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