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

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4
votes
2answers
349 views

Do colour differences which also carry major brightness differences fail WCAG 2.0 SC 1.4.1: Use of Color?

I've run into a conundrum with WCAG 2.0 Success Criteria 1.4.1: Use of Color whilst assessing an internal project for WCAG Level AA compliance. Among my assessment, I'm assessing controls that ...
1
vote
2answers
218 views

Is there any research on colors choice for the web?

I'm writing a thesis on web usability. I'd like to mention the choice of colors and which ones are appropriate to use and which are not. Now I've searched on the internet but what I've found so far ...
2
votes
1answer
876 views

Should the header be the same color as the footer in Material Design?

Strictly speaking of Material Design, Google states that you should use hue shade 500 for large areas of color. I would guess the header is considered large area? Should the header and footer be the ...
1
vote
2answers
139 views

Is blue text, or blue background better for maintaining alertness?

Recent studies on blue light increasing alertness lead to the questions... For online research, which is mostly scanning for relevant text, is black text on a blue background better? For intensely ...
0
votes
3answers
208 views

What's the best way to show active state?

I just wondered if it would be better to have the active state white or yellow. So which of both would you consider active at the moment?
0
votes
2answers
104 views

How to inform about fields in a big form?

I have to improve a very big form with at lot of fields. I'm thinking about making some type of marking to inform the user about: 1. Fields that should be filled 2. Mandatory fields 3. Content that do ...
1
vote
1answer
216 views

Generic input and output colours

I'm developing a game which features various power creating devices, machines that require power and cables to link the two together. Because of a bug that caused the cables to drag power from the all ...
27
votes
9answers
7k views

Dark on Light or Light on Dark? [duplicate]

For a very technical site documenting code, sharing code snippets, and documentation, I have been told that using dark fonts on light backgrounds is recommended for people being able to read the ...
-2
votes
3answers
199 views

Color to depict status [closed]

I have line charts which show active, inactive and failed status of an application. Please suggest which are the best colors to depict that.
4
votes
2answers
221 views

Emphasizing “X days left in trial”

My product shows an indication for number of days left in the free trial: When the number of days left is 3 or less, I would like to emphasize it by coloring in red. What would be the correct way? ...
4
votes
1answer
106 views

Could traditional print benefit from beeline reading?

(Not sure if this is the right exchange for this kind of question, so feel free to transfer it somewhere else.) I just recently rediscovered that I have the Beeline Reader extension installed in my ...
11
votes
5answers
9k 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 ...
2
votes
2answers
188 views

Using black for CTA

I've recently design a website for a client, and at some point he was talking about the Call to action color and he said "I really want to move away from colors. Can we use black please?". I've made ...
0
votes
5answers
112 views

Best way to differentiate “downloading content” and “downloaded content”

I'm working on an iOS app that lets users download and watch video content. In the playlist section I'm trying to find a way to clearly show what titles are being downloaded, and which ones have been ...
2
votes
2answers
334 views

What's your method for choosing button colors?

I realized this has been discussed in different threads, but often what I've found is the topic is segmented into only a couple of actions; i.e. Save and Cancel, or Positive/Negative relationships. ...
12
votes
3answers
2k views

Why is the close button in the title bar red in Windows 7?

Perhaps to prevent users from closing the window or application inadvertently? But is it also a distraction because the color of red stands out? Any insights?
4
votes
2answers
1k views

What is the best way to display disabled field and text for accessibility color contrast support

I am working on a project which needs to support color contrast accessibility. Currently on our system disabled data is presented as grayed-out, but now we need to support color contrast for ...
1
vote
1answer
156 views

What color should be the color of unread inbox indicator?

Recently there was a request about changing the color of inbox unread inbox indicator to green, so it make me think: What would be the best color or for indicator of unread inbox messages (irrelative ...
0
votes
1answer
129 views

Show items related to selected item in list

I have a list on my UI. One item in the list is selected. Out of the remaining items, few can be related to this selected item and other may be totally unrelated. For example, Item4 is selected. No ...
0
votes
3answers
259 views

Website theme change checklist

We are adapting the current UI to the new look, by just changing the font/logo and some graphical images. Current Site Looks like Basically, I am trying to put all the changes in the document and ...
2
votes
4answers
329 views

Why does Google Calendar use a RED 'Loading…' overlay

I've noticed that Google Calendar uses a red Loading... overlay in the top righthand corner on Ajax actions (e.g. opening a calendar item): I know that Google, being Google, have redefined the ...
1
vote
1answer
257 views

How to offer sorting on a color coded table?

Am using a table to display list of names/addr/etc along with colored backgrounds for 'verified','problem' and 'unclassified'. I've been asked to provide a means to sort by these three classes and am ...
0
votes
2answers
478 views

Best color to represent a price decrease or sale? [closed]

I work for a startup in the world of price tracking across multiple retailers. There's an internal debate at the company about color choices that represent a price that has dropped on a product. ...
2
votes
3answers
90 views

Would it be easier to scan a list of grayscale profile pictures compared to colored?

Our search is giving a list of persons and their profile picture with some additional information, last updated, name & title. As of now, we are grayscaling the profile pictures, with full color ...
3
votes
3answers
547 views

Placement of Buy now/Download buttons

Hello respected UX community, I am working on a new website which will be used to sell a software application, but will also have a free limited version of it (not time limited, but feature limited). ...
12
votes
4answers
20k views

How to best communicate color names to users more clearly

Many times in using general color names in communication, i.e. Red and Green, users are confused when the color is a non-pure form of the color. For Example, in referring to the Red-ish color of the ...
5
votes
4answers
505 views

What's the best way to represent a number which is over/under a reference?

I work with a resource management web application. I have a grid of numbers (resources forecasts). I need to show in this grid if the numbers are over or under a reference (resources capacities). I ...
1
vote
3answers
163 views

Should the “zebra striping” data grid set-order column be highlighted, or is it enough that little arrow?

[For PC applications (desktop and web)] As a common rule, when showing data grids, and sorting data through one of its columns, a little arrow appears on that column (sometimes also, the header ...
15
votes
1answer
624 views

Measuring how easy it is for a humans to distinguish two colors

From looking at the Hex values green "008000" and forestgreen "228b22" seem to be more different from each other than seagreen "2e8b57" and forestgreen "228b22" If simply add up the difference by ...
1
vote
1answer
106 views

How to color curves in a Timeseries Chart?

I have a realtime timeseries chart which should show a variety of values. To make it mor clear: It should contain values for a solar park. Therefore I have stuff like Voltage, Current, Power (absolute ...
0
votes
4answers
110 views

Slightly dark frame on light content versus light frame on slightly dark content

I have a text area, and need to make its background color different from the surrounding background (frame, which has other object in it) color. I do not want to make their colors too different, so ...
11
votes
3answers
15k 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?
5
votes
2answers
262 views

How should you create simple, color-coded graphics for color-blind people when the graphics are particularly thin?

I'm starting to make a Flash puzzle game, and I started thinking about how to implement a color-blind mode. (I know there's a game development SE, but this is a user experience question.) To keep it ...
2
votes
1answer
2k views

New Android UI color palette docs, don't understand some colors names (A100, A200…)

About color palette: Android UI Color Palette What are the color starting with 'A' (A100, A200)?
4
votes
3answers
311 views

Why hover colors are often inverted

Recently I see more and more websites using color invertion as a hover visualization. For me it's really annoying as I usually start to read the first few words and than hover over the line to have a ...
14
votes
2answers
816 views

Why print the text of a color name in that color?

The other day I was driving behind a bus and it had a sign on the back that read "This vehicle does not turn on red" and the word "red" was colored red while the other text was black. Is there an ...
0
votes
1answer
182 views

Why does Google Spreadsheet not use the same colors on each computer when collaborating? [closed]

When you collaborate on a Google Spreadsheet, you find yourself speaking of other collaborators with their color (the blue one, the red one, the green one, ...), however, the colors do not match ...
3
votes
3answers
419 views

In a map routing application, what colors should the start and end point have?

We're designing a map applications that allows you to set starting and ending points to plan a route and we're not sure which colors to associate with the two markers. This is what we've got so far, ...
5
votes
4answers
2k views

What are good contrast colors for a GUI application

I am developing a GUI desktop application using wxPython. It is not a website or any web application. I have four boxes in my GUI. I want them to be distinct. Of course They have a different labels/...
52
votes
5answers
7k views

Why is blue used as a background color to indicate no signal?

To my knowledge most projectors' "No Signal" screen uses a blue background: This might also apply to the legendary Blue Screen of Death So why is blue the color of choice for such error messages?...
0
votes
2answers
177 views

Should color only be used to indicate interactivity and state?

I'm looking for the best practices of the use of color for elements in a responsive design which will be used on both desktops and mobile devices. I feel like there are three spectrums of thoughts: ...
8
votes
2answers
827 views

Colourblindness in design

I'm doing a little research to see how many people are affected by colourblindness to see if it is useful for our company to put some extra attention into our designs for those who are colourblind. I'...
18
votes
11answers
4k views

Is red an acceptable colour for a submit button on a form for a purchase or booking?

I have been drafted in to provide UX feedback on a recently completed website. One point I made was that red was not a suitable colour for a positive action, i.e. completing a form. The reply cited ...
1
vote
2answers
110 views

Is there any science way to find out the suitable contrast for text and background colour?

Here is the four text with different level of grey: As you can see, the first line is very difficult to read, and the last one is the best to read. So, is there any science number behind this ...
2
votes
2answers
445 views

iOS Color Picker User Experience

I'm creating an iOS game that allows the user to customize different parts of the main character with a color picker of three sliders. I'm wondering which would be better for the user experience, HSB ...
1
vote
2answers
121 views

Use of color for YouTube voting buttons

I am try to learn good UI design and have been looking through examples like YouTube to see how and why they do things. The design behind the voting buttons is confusing me. When the up vote button ...
32
votes
2answers
10k 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 ...
4
votes
1answer
1k views

How does Windows 7 Aero taskbar determine button hover-state background colour [closed]

This has intrigued me for quite some time. Does anyone know the algorithm Windows 7 Aero uses to determine the colour to use as the mouse-tracking hover highlight on taskbar buttons for currently-...
2
votes
4answers
261 views

Is there an established gradient of colors reflecting completeness of a form?

We have a grid of lines, each of which needs all fields to be input and valid before becoming eligible to submit. There are a few states before reaching elibigility, and i'd like to indicate via the ...
64
votes
5answers
128k views

Dark or white color theme is better for the eyes? [duplicate]

This is not a programming question, but it concerns the programmer itself. So I don't know if it really belongs on this site. But my question is: what is better for the eyes, a dark color theme or a ...