Questions about colors, different color space, RGB or CMYK color model, transparent color, using or changing colors.

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5
votes
5answers
646 views

Color Theory: Is there a measurement of “colorfulness”?

I was adding some colors to a Windows application. A column was going to be colored in order to indicate groupings to the user. So in Photoshop i first selected some colors to use. Being ...
4
votes
4answers
4k views

Given a color scheme, how do I apply to website design?

Just so there is something concrete to discuss, say I have this color scheme: http://www.lavishbootstrap.com/?image_url=http://design-seeds.com/palettes/12/SpringTones505.jpg There are many articles ...
15
votes
1answer
75k views

Make image partially transparent in gimp

I want my image to have 60% transparency. How can I do this in gimp?
11
votes
5answers
4k views

Many successful web startups have blue branding: is this a reflection of something?

Looking at the first page of the most successful Web-based startups of the last 10 years (e.g., Facebook, Instagram, Twitter), we see the extensive usage of the color blue. In terms of the graphic ...
10
votes
4answers
8k views

What is the relationship between hue, saturation and value?

I see people adding color on top of a gray-scale drawing and their colors look great, but when I do myself, the colors look terrible (dirty, not the color I seem to pick from the color wheel). People ...
10
votes
2answers
2k views

How to calculate other colors with the same perceived lightness as a given gray value?

This is related to a question I asked on tex.stackexchange, which has a color aspect. The result of that question is the following image: I have drawn a series of gray squares on the left, with a ...
9
votes
1answer
7k views

How can I map the colors in a greyscale image to a specific color “gradient”?

Caveat: I'm not a graphic designer and may be misusing some terminology. Please bear with me. :-) I'm attempting to add color to some greyscale icons (i.e. all three channels are identical). I ...
7
votes
1answer
681 views

Contrast ratio between foreground and background

What is an acceptable contrast ratio between a foreground and its background?
4
votes
5answers
391 views

Colors in Website Design

It's not a kind of question but rather it's a kind of thing which effects a lot in web designing. What are some important rules to follow for making a color combination in web design? I always fail ...
3
votes
3answers
555 views

I want to learn how to select appropriate colors and fonts for a new site

I'm developing a new site, and although I know enough basic programming to make the site, I'm not artistically inclined enough to make the site look nice. So, I was hoping I could get some suggestions ...
10
votes
3answers
12k views

Text not very readable on different image backgrounds

I've come here seeking for a bit of design help or advice on how I could possibly improve the following: Like the title says, I'm having a website banner with multiple text displayed on different ...
6
votes
1answer
385 views

Never use white?

There was a famous blog post by Ian Taylor called "Never use black", in which he explained that one should never use pure, complete, 0-0-0 black, and should instead put a little bit of color or light ...
6
votes
1answer
245 views

Tips for using poor colours well

This is less of a question with a definitive answer and more of a request for some tips. I am hoping that some of you may had had this problem yourself and can offer some advice. I have been ...
5
votes
4answers
9k views

When I export an image from Illustrator, why is it a slightly different color in the exported image?

I have a web design layout in AI that I'm trying to slice up into HTML/CSS. I'm having trouble keeping the colors the same in the exported files as they are in Illustrator. When I open it up in ...
5
votes
2answers
426 views

Why are certain colors more prone to compression artifacts than others?

I most often see this with compressed video, but I've also seen it often enough with JPEG images. Many times blacks, reds, and other generally dark colors seem to be especially prone to compression ...
4
votes
1answer
622 views

Is there an equation to easily convert a color to its matching color in another hue?

I am trying to design a site with a couple color schemes. I am looking for a way to make color schemes that match mathematically. For example, I know that #FF0000 matches perfectly with #00FF00 and ...
9
votes
7answers
8k views

GIMP - change color of object preserving feathering

I have an .xcf image and I like to change the color of some objects within it. The objects are mostly one solid color with the edges feathered into transparency. I.e. all pixels in the object are ...
9
votes
5answers
10k views

What is 5-colour printing?

When my print rep talks about five-colour printing, what does he mean? I know you have cyan, magenta, yellow and black - but what's the fifth?
7
votes
4answers
576 views

reasoning behind black and white color scheme of perfume sites

In preparation for an upcoming project, I've been looking over a lot of different sites for high end perfumes and/or high fashion. Noticed that most of them (at least the perfume ones) have almost ...
7
votes
1answer
142 views

Is there a metric for “apparent” chroma?

I'm not sure this is the right place to ask, but is anyone aware of a metric for apparent chroma? Now I understand that "chroma" and "chrominance" are very overloaded terms, so to clarify, I ...
6
votes
2answers
2k views

Is there a single text color that is acceptable on both dark and light background?

Is there a single text color that, when used on either dark or light background, produces a readable (or at least tolerable) output? If it makes it easier, constraints can be put on the hue, ...
6
votes
3answers
4k views

Formula for finding out the result of a color after applying x% opacity to it?

I have 2 colors #a1a2a4 black (#000000) white (#ffffff) Now I need to know how much opacity (in a percent) must I apply to the second color (black) against a background of the third color (white) ...
4
votes
2answers
241 views

Perception and color theory

I'm making a custom keyboard and want it to look nice, and like Apple's, without actually copying pixels. I did a bunch of work on creating keys and the background, only to be amazed once again by ...
3
votes
3answers
3k views

Sampling color of partially transparent objects in Illustrator

Sometimes when using Adobe Illustrator I need to get a range of tints from a certain color, so I'll drop the opacity to, say, 75%, 50%, and 25% on a white background to get there. It's the quickest ...
2
votes
4answers
165 views

What benefits are there to workflows using Images at 32-bits per channel?

To be clear, I'm referring to images that have a color depth of 32-bits per channel. Has anyone ever used images this large in a workflow – other than as RAW files directly from a camera? If so, why ...
2
votes
1answer
1k views

logo with color gradient how to do this?

I would like to do the below color gradiant: Does anyone know how to approach this? I have searched but don't know the right way to name this effect. I'd prefer making this effect in Adobe ...
2
votes
2answers
3k views

Is there a way to make Adjustment Layers ignore certain layers?

Is it possible to insert a Hue/Saturation adjustment layer at the top of all layers - but make it so that chosen layers are not affected by it? Can it be done without altering positions? (Ie. moving ...
1
vote
3answers
145 views

What's the name for images like these?

I'm trying to figure out the name for, or a collection of, the kinds of images that "fade-into" a solid color. For example, twitter has this image: This allows them to add a background image that ...
7
votes
2answers
147 views

Calibrating a screen on a budget?

How would you calibrate a screen on a budget? Are there simple, affordable devices, methods, or printed kits that help achieve at least some degree of colour correctness on a modern TFT monitor? ...
6
votes
3answers
2k views

Completely different interpretation of Pantone to RGB values depending where I look.

I'm making a web site and have been told the corporate color is pantone 2745. In illustrator, here, and here it is a deep indigo color. Here, here, here and here it is a deep violet sort of color. ...
5
votes
2answers
185 views

Why do I have to use a gamma of 2.2 when using a JPEG picture?

During the rendering process, the texture file has a gamma of 2.2. But the plain colors do not need this gamma correction, especially if the RGB values are from a spectral characterization. So why do ...
4
votes
2answers
147 views

Faded Colour Code Calculation

I know multiple programs that calculate colours based on a percentage. I really love when colours are displayed this way as they seem to fade in a non-luminous dull way that is really indicative of a ...
4
votes
1answer
472 views

Can I fill a ink cartridge with any type of ink? Even valuable ink?

I have a project that requires the use of really valuable ink - particularly GOLD ink (made with real gold and a water based adhesive - very fine and smooth in texture), in order to get a near perfect ...
4
votes
2answers
1k views

Why not pure black and pure white?

A New Top Bar for Stack Exchange says, The first thing you’ll notice is that it’s really black*. * Jin points out that technically it’s not quite black: it’s #212121. In its CSS I see, ...
4
votes
2answers
259 views

How to choose a color palette for a website

We're completely color illiterate on our team. Our internal site has a lot of black and white, but I've heard that too much contrast is bad. And people don't respond well to the look of our site. ...
4
votes
3answers
819 views

Why is my character lost in the background?

I am designing and developing a 2D-platformer and I'm having trouble with the look and feel of the game. The game is about an inventor who is kidnapped for warfare. Theme: Childish but sad. There are ...
3
votes
1answer
723 views

How to tint or alter the colour of a pattern in Inkscape?

I am able to import and apply patterns to objects, but I don't know how to adjust the colour of the patterns. How does one tint a pattern in Inkscape?
3
votes
1answer
510 views

Illustrator: creating two colour-wheel-like objects out of 23 circles/discs

So what I'm trying to do is make 23 circles in the same style as the image below, but in two concentric rings instead of one big one. The circles should be the same size and also arranged in a ...
3
votes
2answers
1k views

Adobe Illustrator: Is there a way to set the image-trace palette limit to a number over 30?

I'm trying to perform an image-trace on a bitmap artwork. The vector result will then be cut into glass, and I need to have exactly 60 colors, since we only have 60 colors of glass. Is there a way to ...
3
votes
1answer
2k views

Differences in color conversion (RGB to CMYK) / How to choose Corporate Color

I figured out that there are possibly more than one methods to convert RGB to CMYK. Using Adobe Illustrator CS6 (Mac) the color conversion is completely different as the conversion via Wolfram Alpha. ...
3
votes
2answers
11k views

Colors change in Photoshop when copying a selection from one document into a new document

I'm trying to copy a particular layer out of a Photoshop document into its own new document and export it for use on the web. I'm doing this by right-clicking the layer in the layers palette, ...
2
votes
1answer
102 views

Why is my color being darkened when printed?

I am creating a logo and I am using Pantone 638U in Illustrator. I know Pantone has to be premixed but I just wanted to test print on my printer in CMYK. So I converted it to cmyk which is C83 M0 ...
2
votes
2answers
435 views

Systemetic way to choose a good red & green color for dark grey background

I'm don't have any Graphic Design background. I'm a programmer. Recently, I tried to port my holo light themed app, to holo dark themed app. For holo dark themed, the dark grey background being ...
2
votes
1answer
289 views

Rules for adding colors to a black and white palette in web

I am working on a fashion website for my own portfolio, that allows users to have their own account where they save fashion related items. A sort of Pinterest for fashion items. Now, I know that the ...
2
votes
2answers
527 views

Identifying HTML colour codes placed in one pixel

How many colours at once can one pixel contain? Is there a tool that can represent this pixel in a form of HTML colour codes? (And if there are many colours in this pixel, can this tool show the ...
1
vote
3answers
299 views

Any problems with light text on dark background?

My high school journalism teacher always said putting light text on a dark background is hard on readers' eyes and is a bad thing to do. But in my experience making spreads, there are many instances ...
1
vote
1answer
2k views

Illustrator > Recolor Artwork: How to manually choose the replacement colours from swatch groups?

Below is Illustrator's "Recolor Artwork" window. I've chosen to recolour (yes, I'm British) using one of my swatch groups. Notice that the first source colour is replaced with the first swatch group ...
1
vote
1answer
373 views

Black-white and grayscale to alpha conversion for images

Is there an utility for converting all black-white and grayscale images from certain folder to the same images with adjusted alpha channel? For example, for pixel (r:50, g:50, b:50, a:0) I would like ...
1
vote
3answers
939 views

Laptop screen for digital design

I am searching for a laptop with a screen that is suitable for digital design purposes What I am particularly concerned about is a statement made by a poster (on here): (the objective is to) make ...
1
vote
0answers
138 views

Contrast Color with Red [duplicate]

Possible Duplicate: Need help with the Color Combination for the Red Can some one help me to find a color that contrast the color Red HEX: cd0001 I am looking for something i dark rang of ...