Questions tagged [colors]
Use this tag for questions about representing or manipulating colors in a programming language.
colors
21,873
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
1228
votes
46
answers
2.9m
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 {
...
- 13.8k
990
votes
40
answers
625k
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?
- 52.1k
822
votes
61
answers
821k
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).
- 10.6k
708
votes
20
answers
681k
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
703
votes
23
answers
341k
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) ...
- 19.5k
678
votes
23
answers
313k
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 ...
- 52.2k
644
votes
33
answers
653k
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.
616
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 ...
- 24.2k
611
votes
17
answers
241k
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.
- 13.8k
580
votes
28
answers
997k
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 ...
- 16.7k
578
votes
18
answers
363k
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 ...
- 5,986
572
votes
65
answers
911k
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,
...
- 14.7k
555
votes
22
answers
472k
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 ...
- 5,893
549
votes
16
answers
939k
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: #...
- 15.4k
540
votes
48
answers
367k
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 ...
- 7,721
540
votes
7
answers
503k
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) ...
- 28.6k
535
votes
13
answers
466k
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
531
votes
23
answers
468k
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):
...
- 42.2k
513
votes
7
answers
494k
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.
- 19.7k
503
votes
8
answers
493k
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 ...
- 315k
486
votes
17
answers
644k
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.
- 4,875
418
votes
13
answers
223k
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 ...
- 5,107
394
votes
16
answers
402k
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?
- 14.5k
379
votes
27
answers
148k
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 ...
- 5,569
367
votes
16
answers
434k
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 ...
- 12.2k
340
votes
23
answers
780k
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
6
answers
651k
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: ...
- 6,326
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 ...
- 4,539
330
votes
16
answers
154k
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 ...
- 26.8k
316
votes
27
answers
456k
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.
- 11.1k
315
votes
11
answers
178k
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 ...
- 14.9k
303
votes
23
answers
98k
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 ...
- 47.9k
303
votes
15
answers
366k
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 ...
- 15.4k
292
votes
14
answers
257k
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?
- 52k
278
votes
19
answers
316k
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 ...
- 7,409
272
votes
10
answers
290k
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 ...
- 75.8k
251
votes
24
answers
244k
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.
- 39.3k
250
votes
16
answers
145k
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
248
votes
20
answers
178k
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 ...
- 9,133
245
votes
19
answers
190k
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 ...
- 13.9k
244
votes
22
answers
187k
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
...
- 3,879
243
votes
13
answers
148k
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 #...
- 3,710
236
votes
12
answers
340k
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 ...
- 50.9k
233
votes
10
answers
181k
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="#...
- 5,202
232
votes
7
answers
459k
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 ...
- 2,329
232
votes
20
answers
194k
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
218
votes
17
answers
142k
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 ...
- 12.1k
213
votes
6
answers
74k
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 ...
- 2,588