the visual perceptual property corresponding in humans to the categories called red, green, blue and others

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30
votes
6answers
34k views

Why are Inverted Colors considered an accessibility feature?

Why is it that in most Operating Systems the "Inverted Colors" display setting is considered an accessibility feature? Both Windows and OS X includes this option so it seems to be a recognized ...
0
votes
1answer
132 views

visually distinguish favorite items and wishlist items [closed]

So I have a list which is a mix of "wishlist" locations that a user wants to visit and "favorite" locations that a user has visited and liked. (physical locations e.g. restaurants, coffee shops, bars) ...
4
votes
2answers
157 views

How can I choose a relative colour scheme for prices?

A client needs a piece of software where he can see what price he should be using for his products. Ideally you would say that an expensive price should be red. It is, after all, a negative ...
2
votes
3answers
277 views

What is the relation of the category/type of a mobile app to its color?

What is the correlation between an app's category (food and drink, social networking, financial, etc.) and the color scheme it uses? Are there any solid, researched-backed reasons behind choosing ...
10
votes
5answers
4k views

Why do most financial apps use a black or dark background?

I was asked today to look into designing a stock monitoring windows 8 application and I was looking around for design ideas when I noticed an interesting trend where it seems like most of these stock ...
1
vote
1answer
254 views

Correlation between number of colors used and brain processing?

A professor once told a class I was in that there is a fixed amount of bits one can process at one time. I've always thought of it as our brains processor speed. This was in a HCI class. He also ...
1
vote
5answers
554 views

Is it better to use a high quality monitor to design web graphics? [closed]

I am doing web graphics for about a year on quite good PVA LCD display. 95% of people who see my websites/banners are watching them on low quality TN displays suited for gaming or laptops. Colors on ...
3
votes
0answers
39 views

How does background,text colors affects user's experience in reading? [duplicate]

Possible Duplicate(s): Choosing a set of colors Is this color readable? What is the best color combination for on screen reading? My QUESTION - How does background and text colors ...
4
votes
3answers
2k views

What are some best practices in picking navigation bar background color? [closed]

I am using twitter bootstrap and I don't like the default dark gray background color for the navbar. So I was thinking of chosing a different color. But being a programmer and not a designer first ...
35
votes
5answers
7k views

Is there a problem with using black text on white backgrounds?

Why do a lot of websites use a text color other than #000000 black when the background is white? For instance, this text will be displayed using a dark grey: .post-text { color: #333; } Have ...
5
votes
3answers
2k views

How to find a color scheme that's also useful when printed in black and white?

I'm looking for a 5 color color-scheme that also useful when printed in black and white, respectively gray scale. The colors should be easily distinguishable from each other. How can i do that?
2
votes
2answers
2k views

What is the difference between WCAG 2 AAA Compliant and WCAG 2 AA Compliant

I use a web app to check my site color contrast. Most of my color (Back/fore ground colors) are OK and I see YES inside textboxes except the one which refers to WCAG 2 AAA. What is it? What is the ...
6
votes
5answers
744 views

Are social media icons as effective when grey-scale?

Social icons may be more noticeable in the header, but they can clutter they navigation. Are social icons as effective in grey-scale? ie. Will users still see them in a group of links if they're not ...
3
votes
3answers
216 views

Marking tasks in red?

There's a list of items, some of them require attention. I'm thinking about using the color red. It used to be used for errors, so red was an unpleasant color. Today we have red notifications on iOS ...
16
votes
10answers
1k views

How much color may a UI have?

I work on a Network management system (NMS) frontend. Basically this app shows a list of alarms, updated in realtime. Such NMS apps already exist in a large variety, but two things they have in ...
11
votes
1answer
1k views

Microsoft Visual Studio 11 - why would they use uppercase in UI?

Microsoft has been very transparent with their updates to Visual Studio 11. It includes a huge change to the UI design of the entire IDE, most notably colour themes, icons and capitlization. In their ...
5
votes
5answers
523 views

Color in Scientific Visualization

I am interested in any academic research or guidelines that suggests the most effective use of color in scientific visualisations. Particularly I am interested in the merits of black on white or white ...
5
votes
3answers
611 views

Why are primary/call-to-action buttons usually plain blue?

I understand the reasoning for using blue in general, for backgrounds, etc... What I'm asking about is the blue in twitter bootstrap framework and other similar frameworks. It seems to become a sort ...
3
votes
6answers
4k views

Color for add to cart button

Is there a best call to action color for "Add to Cart" buttons. Does the color of this button have any effect on decision making? I read somewhere that the color red may trigger "eating" so most of ...
5
votes
2answers
445 views

Standards for and measuring contrast of solid color fills

There are several questions on UX (e.g. here, here, here) already about contrast. However, all of those are about text, and the contrast between text and background, most off them referencing this W3 ...
3
votes
3answers
303 views

Remove color to add emphasis

Context I'm working on a new user interface for a project portal system. Part of the system is a dashboard that lets the user know what the status of his project is. This dashboard is also there to ...
7
votes
3answers
451 views

Can using red/scarlet in a design distract users?

The colour red is usually associated with "danger" and "you're about to do something dangerous." What should you look out for if you're planning on a design that is primarily focused around the colour ...
5
votes
2answers
297 views

How should I format question-response sections in a document?

I work on proposals that need to be formatted in question-response sections. Currently, we use different colors to distinguish between questions and responses. However, members of my team want to make ...
1
vote
1answer
75 views

Need to learn the right way to use fonts colors on my site? [closed]

I want to learn web design to make good-looking websites. I have learned CSS, JavaScript, HTML quite well. But I need to be able to choose the right fonts, colors, backgrounds, images, etc. I want to ...
3
votes
1answer
85 views

Toolbar of digital signatures

Where I work, we have one of our systems in a web viewer for PDF files signed with the extension ". P7s." We are doing a toolbar similar to the adobe reader (picture below). The panel is also of ...
2
votes
6answers
843 views

Dark labels or light labels

Just wondering what your opinions are on html forms. Is it better to have a light coloured label and a dark coloured value or the other way round, a dark label with a light value? What are the ...
16
votes
3answers
3k views

How many visually distinct colors can accurately be associated with a separated legend in a figure?

For charts and graphs it's a relatively common question by programmers to want to procedurally generate an arbitrary number of colors that are visually distinct. Various research (or educated ...
2
votes
2answers
280 views

What is the value of accent colors with regards to UX?

I have been hearing a lot about how accent colors help in visualizing the key points on the page and drawing the eye to critical action items but I havent really got the understanding of how they ...
6
votes
3answers
303 views

Providing warm colors when the content is depressing?

I had posted a question earlier asking for views on what would be the ideal background color to enhance readability and had indicated my inclination towards having a dark or a greyish background to ...
6
votes
3answers
440 views

Are dark non neutrals colors suited for page backgrounds or is it more advisable to go for neutral colors like black or dark grey?

I am just finishing up a site for a non profit and we are having a bit of a debate of about what the background color should be I have been trying to emphasise on the need for a neutral color like ...
4
votes
4answers
573 views

Best Way to Darken a Color Until it is Readable?

What's the best way to darken a color until it is readable? I have a series of titles which have an associated color, but some of these colors are very light and any text drawn in them is unreadable. ...
5
votes
3answers
397 views

Is it better to 'XOR' or 'shade' text that is highlighted?

What is the best way of displaying highlighted text in a text editor? I know of shading, which simulates what a physical highlighter does: And 'xor' highlighting: Are there any other methods? ...
5
votes
3answers
1k views

How can I choose a colour palette for multiple data visualization types?

I'm currently implementing the Google Visualization API into an existing platform, one requirement of which is the ability to choose custom colours for chart elements (such as pie slices and columns). ...
-3
votes
4answers
471 views

Is this site's colour scheme readable?

Having realised that I am not very good at identifying whether a site works and is readable, can I ask for comments on this site's colour scheme, which is entirely under my control. I have tried to go ...
12
votes
2answers
856 views

Why do the iPhone and iPad keyboards use different shades of gray for the keys and background?

I noticed when working with iPhone and iPad keyboards that they are quite a significantly different colour: Is there any particular reason for this?
24
votes
2answers
5k views

Is the color red really appropriate for form validation errors?

It seems to be taken for granted that the color red is appropriate to highlight errors. In the case of serious system errors, I agree. However, I'm having doubts that it's the right choice for user ...
12
votes
5answers
1k views

Which color for a “Pay now” button?

I know there is no such thing as one good color that can be universally accepted, but I've been told orange is the "right color" for the payment button, and it is notable to see how both Paypal and ...
8
votes
4answers
305 views

Using a secondary set of colors to indicate which elements of the UI can be interacted with

I was reading this article about Metro UI designs, and I was struck by this statement: Example, if you look under the hood of a new car, you will see areas colored yellow whereas the rest is the ...
10
votes
4answers
378 views

How different should two colors be to appear distinct to the human eye?

I was having a look at the "Reputation" tab in Stackoverflow and it occurred to me that the yellow used to highlight the new entries doesn't stand out a lot from the white background. I really have to ...
17
votes
12answers
3k views

Is this hard to read?

This is a snippet on a site i have just been building. I considered the readability etc, and the corporate colours, and tried to work with them. Actually, I find it quite relaxing to read and view, ...
1
vote
2answers
197 views

Button color for access and deny permissions buttons?

I need to create an email template which is auto generated when an user requests access permissions to a document .The email template is sent to the document owner and is in this format : Subject: ...
7
votes
3answers
3k views

Why are most social networking sites in blue?

Why do most social media websites use blue as the main color? e.g., Twitter, Facebook, LinkedIn, foursquare, ... I am only interested in answers based on some scientific research.
11
votes
4answers
392 views

What research, patterns or techniques will help me choose the correct colors (or saturations) to the various UI elements of a page?

I am building a tool that will be used by call center agents. It is to help them support products on behalf of the customers who call up. It acts as a portal to many different types of product ...
9
votes
4answers
13k views

Which colors make you hungry

I am working on a new brand, which is all about food. What colors should we use for the logo and website? I keep reading that red makes you hungry, but i would like to stay away from that color. ...
15
votes
6answers
990 views

Is flashing red text a good idea for denoting an active alarm?

I'm working on a windows application that is showing the realtime status of a particular piece of equipment. While operating the equipment (via the application), two important values & labels are ...
13
votes
8answers
833 views

How to determine whether links have enough contrast?

I find it very hard to distinguish links from normal text on Programmers Stack Exchange, especially visited links on wall-of-text posts. The colour scheme used is: Background #fafafa (there's a ...
9
votes
4answers
526 views

automatically calculate contrast

A user can change the default design of his site by selecting a color. This color is applied to the menu background color. The problem is that I have to change the menu text color depending on the ...
2
votes
3answers
180 views

What colours should arithmetical operators +, −, ÷ and × have?

Are there any colours that are commonly associated with basic arithmetical operations? I want to make the operators +, −, ÷ and × more easily distinguishable by colourizing them. For the plus and ...
12
votes
2answers
563 views

Is there a 'science' to what colors to use on primary 'call-to-action' buttons?

I was wondering what research I can find on what colors to use for primary 'call-to-action' buttons. I know the size of the button and the contrast it has in relation to its background play a big ...
2
votes
2answers
101 views

Information Graphics vs Brand Awareness

I'm looking for some information on mapping color to graphs. To be more specific, I've got a bunch of graphs that represent Twitter, Facebook, LinkedIn and now Google+ in line charts. We've had an on ...