Questions tagged [colors]
Use this tag for questions about representing or manipulating colors in a programming language.
colors
21,941
questions
1446
votes
8
answers
1.3m
views
Hex transparency in colors [duplicate]
I'm working on implementing a widget transparency option for my app widget although I'm having some trouble getting the hex color values right. Being completely new to hex color transparency I ...
- 17.3k
1274
votes
47
answers
3.0m
views
How can I change the color of an 'svg' element?
I want to use this technique and change the SVG color, but so far I haven't been able to do so. I use this in the CSS, but my image is always black, no matter what.
My code:
.change-my-color {
...
- 14.3k
1009
votes
42
answers
641k
views
How to change node.js's console font color?
I had to change the console background color to white because of eye problems, but the font is gray colored and it makes the messages unreadable. How can I change it?
- 52.4k
834
votes
61
answers
838k
views
RGB to hex and hex to RGB
How to convert colors in RGB format to hex format and vice versa?
For example, convert '#0080C0' to (0, 128, 192).
- 10.7k
711
votes
20
answers
690k
views
How do I get the color from a hexadecimal color code using .NET?
How can I get a color from a hexadecimal color code (e.g. #FFDFD991)?
I am reading a file and am getting a hexadecimal color code. I need to create the corresponding System.Windows.Media.Color ...
- 17.5k
710
votes
23
answers
350k
views
Programmatically Lighten or Darken a hex color (or rgb, and blend colors)
Here is a function I was working on to programmatically lighten or darken a hex color by a specific amount. Just pass in a string like "3F6D2A" for the color (col) and a base10 integer (amt) ...
- 19.6k
684
votes
23
answers
321k
views
Colorized grep -- viewing the entire file with highlighted matches
I find grep's --color=always flag to be tremendously useful. However, grep only prints lines with matches (unless you ask for context lines). Given that each line it prints has a match, the ...
- 52.3k
655
votes
33
answers
677k
views
How do I use hexadecimal color strings in Flutter?
How do I convert a hexadecimal color string like #b74093 to a Color in Flutter?
I want to use a HEX color code in Dart.
618
votes
40
answers
1.3m
views
How to set the text color of TextView in code?
In XML, we can set a text color by the textColor attribute, like android:textColor="#FF0000". But how do I change it by coding?
I tried something like:
holder.text.setTextColor(R.color.Red);
Where ...
- 24.3k
615
votes
17
answers
244k
views
How to colorize diff on the command line
When I have a diff, how can I colorize it so that it looks good?
I want it for the command line, so please no GUI solutions.
- 13.9k
604
votes
19
answers
389k
views
How do I apply opacity to a CSS color variable?
I am designing an app in electron, so I have access to CSS variables. I have defined a color variable in vars.css:
:root {
--color: #f0f0f0;
}
I want to use this color in main.css, but with some ...
- 6,246
592
votes
29
answers
1.0m
views
Dynamically change color to lighter or darker by percentage CSS
We have a big application on the site and we have a few links which are, let's say blue color like the blue links on this site. Now I want to make some other links, but with lighter color. Obviously I ...
- 16.9k
575
votes
65
answers
923k
views
Random color generator
Given this function, I want to replace the color with a random color generator.
document.overlay = GPolyline.fromEncoded({
color: "#0000FF",
weight: 10,
points: encoded_points,
...
- 14.8k
562
votes
23
answers
486k
views
Formula to determine perceived brightness of RGB color
I'm looking for some kind of formula or algorithm to determine the brightness of a color given the RGB values. I know it can't be as simple as adding the RGB values together and having higher sums be ...
- 5,963
550
votes
16
answers
943k
views
How to set Bullet colors in UL/LI html lists via CSS without using any images or span tags [duplicate]
Imagine a simple unsorted list with some <li> items. Now, I have defined the bullets to be square shaped via list-style:square; However, if I set the color of the <li> items with color: #...
- 15.5k
548
votes
48
answers
385k
views
How can I color Python logging output?
Some time ago, I saw a Mono application with colored output, presumably because of its log system (because all the messages were standardized).
Now, Python has the logging module, which lets you ...
- 7,821
544
votes
22
answers
487k
views
How to add color to GitHub's README.md file
I have a README.md file for my project underscore-cli, and I want to document the --color flag.
Currently, the only way to do this is with a screenshot (which can be stored in the project repository):
...
- 42.4k
540
votes
7
answers
508k
views
OS X Terminal Colors [closed]
I just got a Mac after working with Ubuntu Linux for some time. Among the many things I'm trying to figure out is the absence of colors in my terminal window- like the ones that are shown (on Linux) ...
- 28.7k
535
votes
13
answers
470k
views
How can I get color-int from color resource?
Is there any way to get a color-int from a color resource?
I am trying to get the individual red, blue and green components of a color defined in the resource (R.color.myColor) so that I can set the ...
- 15.3k
528
votes
8
answers
528k
views
List of ANSI color escape sequences
On most terminals it is possible to colorize output using the \033 ANSI escape sequence.
I'm looking for a list of all supported colors and options (like bright and blinking).
As there are probably ...
- 316k
521
votes
7
answers
504k
views
SVG fill color transparency / alpha?
Is it possible to set a transparency or alpha level on SVG fill colours?
I've tried adding two values to the fill tag (changing it from fill="#044B94" to fill="#044B9466"), but this doesn't work.
- 19.9k
489
votes
17
answers
657k
views
How to print color in console using System.out.println?
How can I print color in console? I want to show data in colors when the processor sends data and in different colors when it receives data.
- 4,905
420
votes
13
answers
226k
views
How to color the Git console?
I recently saw that the git console in Windows is colored, e.g. Green for additions, red for deletions, etc. How do I color my git console like that?
To install it, I used the command: $ sudo apt-get ...
- 5,143
399
votes
16
answers
409k
views
How do I output coloured text to a Linux terminal?
How do I print coloured characters to a Linux terminal that supports it?
How do I tell whether the terminal supports colour codes?
- 14.6k
385
votes
27
answers
154k
views
How to decide font color in white or black depending on background color?
I want to show some images like this example
The fill color is decided by a field in the data base with the color in hex (ex:ClassX -> Color: #66FFFF).
Now, I want to show data above a fill with the ...
- 5,649
369
votes
16
answers
440k
views
How to get a Color from hexadecimal Color String
I'd like to use a color from an hexa string such as "#FFFF0000" to (say) change the background color of a Layout.
Color.HSVToColor looks like a winner but it takes a float[] as a parameter.
Am I any ...
- 12.3k
340
votes
6
answers
705k
views
Named colors in matplotlib
What named colors are available in matplotlib for use in plots? I can find a list on the matplotlib documentation that claims that these are the only names:
b: blue
g: green
r: red
c: cyan
m: ...
- 6,356
340
votes
23
answers
788k
views
Can I change the color of Font Awesome's cog icon?
I have to wrap my icon within an <a> tag for some reason.
Is there any possible way to change the color of a font-awesome icon to black?
or is it impossible as long as it wrapped within an <a&...
- 5,177
338
votes
18
answers
518k
views
jQuery animate backgroundColor
I am trying to animate a change in backgroundColor using jQuery on mouseover.
I have checked some example and I seem to have it right, it works with other properties like fontSize, but with ...
- 4,559
331
votes
16
answers
156k
views
Algorithm to randomly generate an aesthetically-pleasing color palette [closed]
I'm looking for a simple algorithm to generate a large number of random, aesthetically pleasing colors. So no crazy neon colors, colors reminiscent of feces, etc.
I've found solutions to this ...
319
votes
27
answers
467k
views
How to echo with different colors in the Windows command line
I know that the color bf command sets the colors of the whole command line window but I wanted to to print one single line in a different color.
- 11.2k
315
votes
11
answers
180k
views
How can I use Ruby to colorize the text output to a terminal?
Using Ruby, how can I perform background and foreground text colorization for output in the terminal?
I remember, when programming Pascal we all used to write our own textcolor(…) procedures to make ...
- 15k
311
votes
16
answers
379k
views
CSS hexadecimal RGBA?
I know you can write ...
background-color: #ff0000;
... if you want something that is red.
And you can write ...
background-color: rgba(255, 0, 0, 0.5);
... if you want something red and ...
- 15.6k
305
votes
23
answers
100k
views
Determine font color based on background color
Given a system (a website for instance) that lets a user customize the background color for some section but not the font color (to keep number of options to a minimum), is there a way to ...
- 48.1k
300
votes
14
answers
268k
views
Is it possible to write to the console in colour in .NET?
Writing a small command line tool, it would be nice to output in different colours. Is this possible?
- 52.4k
283
votes
20
answers
324k
views
How can I define colors as variables in CSS?
I’m working on a CSS file that is quite long. I know that the client could ask for changes to the color scheme, and was wondering: is it possible to assign colors to variables, so that I can just ...
- 7,459
277
votes
9
answers
302k
views
Getting individual colors from a color map in matplotlib
If you have a Colormap cmap, for example:
cmap = matplotlib.cm.get_cmap('Spectral')
How can you get a particular colour out of it between 0 and 1, where 0 is the first colour in the map and 1 is the ...
- 77k
252
votes
16
answers
146k
views
Change UITextField and UITextView Cursor / Caret Color
I'm wondering about changing the color of the cursor / caret in a UITextField (And UITextView if its the same answer) in iOS. I've seen answers for OSX development, but nothing for iOS.
Is this even ...
- 11k
252
votes
24
answers
249k
views
HSL to RGB color conversion
I am looking for an algorithm to convert between HSL color to RGB.
It seems to me that HSL is not very widely used so I am not having much luck searching for a converter.
- 39.4k
251
votes
20
answers
180k
views
How to automatically generate N "distinct" colors?
I wrote the two methods below to automatically select N distinct colors. It works by defining a piecewise linear function on the RGB cube. The benefit of this is you can also get a progressive scale ...
- 9,193
250
votes
22
answers
195k
views
Removing colors from output
I have some script that produces output with colors and I need to remove the ANSI codes.
#!/bin/bash
exec > >(tee log) # redirect the output to a file but keep it on stdout
exec 2>&1
...
- 3,959
249
votes
19
answers
196k
views
Create a hexadecimal colour based on a string with JavaScript
I want to create a function that will accept any old string (will usually be a single word) and from that somehow generate a hexadecimal value between #000000 and #FFFFFF, so I can use it as a colour ...
- 14k
246
votes
14
answers
150k
views
How to convert a color integer to a hex String in Android?
I have an integer that was generated from an android.graphics.Color.
It has a value of -16776961. How do I convert it into a hex string with the format #RRGGBB?
Simply put: I would like to output #...
- 3,740
243
votes
12
answers
354k
views
How can I change the color of my prompt in zsh (different from normal text)?
To recognize better the start and the end of output on a commandline, I want to change the color of my prompt, so that it is visibly different from the programs output. As I use zsh, can anyone give ...
- 51.1k
234
votes
7
answers
463k
views
How to get different colored lines for different plots in a single figure
I am using matplotlib to create the plots. I have to identify each plot with a different color which should be automatically generated by Python.
Can you please give me a method to put different ...
- 2,349
233
votes
10
answers
182k
views
Understanding colors on Android (six characters)
I am trying to understand how colors work in Android. I have this color set as the background of my LinearLayout, and I get a background gray with some transparency:
<gradient android:startColor="#...
- 4,812
232
votes
20
answers
198k
views
How to compare two colors for similarity/difference
I want to design a program that can help me assess between 5 pre-defined colors which one is more similar to a variable color, and with what percentage. The thing is that I don't know how to do that ...
- 2,321
229
votes
15
answers
155k
views
How can I get the iOS 7 default blue color programmatically?
I'm creating custom elements in my app and want to match the look and feel of the new iOS. iOS 7 introduced to us a very common lighter blue color, the default color or tint for several elements, ...
- 2,784
219
votes
18
answers
146k
views
How to change color of CircularProgressIndicator
How can I change the color of CircularProgressIndicator?
The value of the color is an instance of Animation<Color>, but I am hoping there is a simpler way to change the color without trouble of ...
- 12.2k
215
votes
6
answers
76k
views
Coloring white space in git-diff's output
Regarding code formatting I'm kind of purist :). I very often remove unnecessary white spaces (lines with only ws, ws at the end of lines etc). I even have set vim to show that kind of lines colored ...
- 2,608