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

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0answers
52 views

why do nearly all website use gray text instead of true black? [duplicate]

Why do most websites (including this one) use gray text (e.g. #333333) instead of black (e.g. #000000)? Is it to prevent eye strain? Wouldn't true black offer better contrast, particularly for those ...
0
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2answers
34 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: ...
6
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2answers
732 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. ...
18
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11answers
3k 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 ...
0
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2answers
55 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 ...
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1answer
126 views

Designing the UI of a chrome extension's popup

I just built a chrome extension for my college. It helps students know their total marks and % without manually adding their marks. The user doesn't interact with the popup. He only watches the ...
0
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2answers
63 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 ...
1
vote
2answers
111 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
1answer
106 views

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

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
1answer
113 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 ...
2
votes
4answers
66 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 ...
0
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0answers
70 views

Dark on light versus light on dark for command line and development tools

I've been reading the very useful information in these two threads: Dark or white color theme is better for the eyes What are the negative and positive aspects of dark color scheme I understand ...
7
votes
5answers
651 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 ...
0
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1answer
139 views

Should Income and Expense in money management app be red or green?

I'm designing a money management app, and I'm curious what does people react to the color red and green. Incomes should be displayed green or red? And expenses?
4
votes
1answer
136 views

How much darker should yellow be get the same contrast as other colors?

By how much should the color yellow be darkened to get the same contrast values as other colors displayed on a computer screen? This is something that i would do by sight, but i was wondering if ...
2
votes
2answers
179 views

Why is red associated to greatness in some websites?

I have been lately wondering why some websites who rank products associate the red colour to being good and green with being bad. Isn't red usually associated to danger or to something you want to ...
3
votes
1answer
153 views

Studies about yellow increasing readership of technical materials?

I have read contradictory opinions on this topics. In general it is thought that yellow is an intellectual color. The problem is that most of the "studies" seem very pseudo-scientific. Some point out ...
1
vote
4answers
149 views

Is it possible to imitate sunset and -rise? [closed]

I reformulated my question entirely. So here we go again ;-) Lets say my goal is to imitate (parts of) the "sunset/sunrise happening" with or within a digital device. I want to transport that feeling ...
3
votes
1answer
110 views

Good colors to indicate presence (in/out)

I'm designing an app that allows people to indicate if they are in or out of the office. When they change state, I'm showing a pop-up screen with an in icon or an out icon. Currently the background ...
3
votes
4answers
134 views

On TV, when you see an infomercial, why do they use jarring colors?

When you see an infomercial "buy now" type commercial on TV, they always use the jarring contrast of big yellow font on a blue background with a small viewport of video displaying the product. Does ...
3
votes
3answers
151 views

Allow users to change text and background color in my web app?

Background: I'm building a basic web app that's targeted toward (wait for it) academics. The app is entirely text-driven, and will not involve any images. It will incorporate some databases and longer ...
1
vote
2answers
80 views

From an accessibility perspective, is it alright to use blue text for headings?

Since most people associate blue words/phrases on a webpage with hyperlinks, I know it's a bad idea to use blue text to provide emphasis on a word or phrase within a paragraph. However, does the same ...
2
votes
3answers
96 views

How to improve calendar event containment?

I'm using FullCalendar on a project where users primarily have a single event that lasts multiple days or weeks, with multiple other events scattered throughout. I've had a handfull of users say that ...
2
votes
3answers
106 views

Color Combination

I am trying to create a webpage and I don't know much about UX. I am quite confused about the colour combination of text. Like here(in the picture) I used two different colours for the Title and Tag ...
1
vote
3answers
101 views

What should I use to represent “too high” and “too low” with icons and/or colors? [closed]

I'm working on a project where we will present the user with a grid of rows, each of which has a value that's too high or too low (a value associated with the row is higher or lower than the range ...
2
votes
4answers
445 views

Why is there a contradiction between red in software and in workshop hardware?

If we often use red in software to warn someone to think before interacting with something, like a delete button for example, why do serious power tools like circular bench saws have big red buttons ...
0
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2answers
233 views

Should I use a single gradient or plain color background for my app?

I have an app with a screen for a list, a screen for a photo preview, a screen with fields for entering data and of course a splash screen. Should I use a single gradient/plain color background for ...
1
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4answers
604 views

Professional Slides presentations. Light or dark background?

I must choose my company's default PowerPoint presentation template. Having in mind that this template should be versatile, and that people want to create presentations quickly, should I create a ...
2
votes
5answers
195 views

Do you account for colours looking different depending on the background?

I have a website with a white background, but dark grey header. I like to use #09F (light blue) for hyperlink text, but they look a lot different depending on whether the background is dark or light. ...
1
vote
1answer
115 views

How to interpret wcag2.0 guidelines on contrast for buttons and icons

The accessibility guidelines from the W3C offer neat and usable guidelines for creating text that is readable for everyone. There are a number of very useful tools for checking contrast levels, so ...
1
vote
2answers
70 views

Correction in color model

In HSL color model, I have a subjective feeling that there is interaction between saturation and lightness. That is, as the lightness becomes close to 0 or 1, we need a larger value of saturation in ...
2
votes
4answers
148 views

Color for an “online” indicator

I always thought that green fits best if you want to indicate a successful connection. But I recently noticed that our router at work uses blue LEDs. Is there any difference in their meaning? Like ...
2
votes
4answers
191 views

Which color to choose for food? [duplicate]

I'm building an Online Food Ordering website, where users can order food from their favourite restaurants. I'm confused in selecting the colors for the website, can any one help me with it. Which ...
3
votes
4answers
273 views

Which map background color is best (from the perspective of ergonomics at the workplace)?

Which map background color (white, black, other?) is best from the perspective of ergonomics at the workplace? Certainly aspects play a role such as reflections, tiredness of the eyes, contrast and ...
1
vote
3answers
133 views

What factors to consider when picking a color theme for a short user survey?

I fairly frequently create short, google-doc surveys with 3-5 questions. Before today I always used the default template and never thought to change colors. However, considering I also work at a ...
4
votes
4answers
266 views

Transparent resin casting vs. solid metal color

I am designing an electronics circuit (gps-tracker/recorder) that I would like to cast in a material for durability and aesthetics, as pictured. I may decide to sell it at some point. It would be ...
5
votes
6answers
317 views

Red (and green) indicator icons on a dark blue background

We have a webapp with a dark blue background (this is a branding decision, and we don't want to revisit it... yet). We want to indicate positive/negative change with the traditional "stock ticker" ...
2
votes
3answers
338 views

Why are so many mobile side panels dark grey?

The fact that so many mobile side panels are dark grey (Facebook etc.) - is it based on any research?
16
votes
2answers
975 views

Should punctuation at the end of a sentence be bold, emphasized, or colored?

I've worked with both a designer and an editor on a project which required their mutual agreement. One of their differing points was about whether or not punctuation should be bolded, italicized. An ...
0
votes
1answer
142 views

Highlighting incoming/outgoing amounts in the balance sheet

I am designing a screen that has a long balance sheet, with hundreds of transactions. I was thinking of highlighting incoming/outgoing rows using different colours incoming - green, outgoing - red. In ...
0
votes
3answers
142 views

Putting content in white boxes on grey backgrounds

Why do sites like Google+ and the new upcoming Facebook news feed put their content in white boxes on grey backgrounds? Are there any benefits to this compared to say an all white background like ...
10
votes
2answers
401 views

Should websites provide high contrast or alternate schemes?

With regards to Accessibility, many sites focus on font-size adjustments either the browser's / OS's native controls or via a control on the page (usually denoted by 3 capital A's of varying size). ...
9
votes
2answers
345 views

Color of “Download application” button

We have mobile applications both for iOS and Android. There also is the site, supporting the application. We have put 2 buttons on our site for downloading application. We did like it usually is done: ...
18
votes
4answers
607 views

Dark screens in cars

I am a designer just preparing an app for the "in car" area. Normally we have a bunch of colors to use and we usually use dark colors on a light background. Now our client came up with some question ...
5
votes
4answers
162 views

How to show for user that the link is visited?

Is it good practice to make visited links different color from not visited links? Many browsers make visited links violet. Or is it good to remove underline from visited links if not visited is ...
9
votes
5answers
502 views

Intuitive colour pickers for non-expert users?

Does anyone have examples of favourite colour pickers (as UI elements, not dedicated color-picking apps or sites) for common, 'everyday' colours - not for RGB or HSL values? I find traditional colour ...
0
votes
0answers
45 views

Resources on Distinguishable Colors? [duplicate]

For clarity, this isn't an accessibility question. I want the colors to be distinguishable from each other for differentiating items that will re-occur in a calendar. I'm building an app where ...
5
votes
2answers
183 views

What is the validity of contrast and colours tests?

I just ran a contrast and colour test (using checkmycolours.com in this case) on our corporate site (www.dotblue.net; if you care) and it reports quite some failures. However, I explicitly optimized ...
5
votes
3answers
362 views

Battery - what percentage range to use for each color?

I need to display battery with 3 colors: green, orange (or yellow?) and red. This device's battery (like iPad, iPhone etc..) with a battery life of up to two days. What percentage range to use for ...
2
votes
2answers
150 views

What to present when wrong log in information entered [duplicate]

In my sign in page I made it so that the page doesn't need to reload when the wrong password is typed (similar to Google's). What should happen when the wrong password is typed? Right now I have text ...