Muhammad SamiulColor Picker from Screen – Get HEX, RGB, HSV, CMYK, & HSL Codes.
Try the tool with the best features now.
https://www.multiprotools.com/2025/12/colour-picker-from-screen.html
ThePfromtheO@itsfoss
So, the #colourPicker and the #calendar things, together with the #changing #logo one, have blown me away! 
Kevin Karhan 
@drwpow there are some nice ones like #ColourPicker on #Linux, but if you need something beyond "what color is this pixel" and/or "how does #00FF00 & #Ff8000 on #000000 look like?" then https://color.adobe.com is propably the way to go...
Unless you do industrial design for products, then you basically need #RAL and/or #PANTONE reference #colours.
Also @randomColorContrasts is a cool bot sometimes offering good and inspiring colour pairs...
Tomi the Slav and 1024 othersToday I found out about #windows #powertoys and #colourpicker: https://github.com/microsoft/PowerToys/releases/tag/v0.66.0
Polly KraisusHey @rstats , I am only now exploring the amazing #colorspace package (with a recent 2.0 release) and I am absolutely amazed at what it can do. Have a look at the fascinating articles on the website: http://colorspace.r-forge.r-project.org/
This will mean quite a few changes for my ggplot2 lessons, moving away from both #ColorBrewer and #colourpicker for more consistency and #accessibility.
A Toolbox for Manipulating and Assessing Colors and Palettes
Carries out mapping between assorted color spaces including RGB, HSV, HLS, CIEXYZ, CIELUV, HCL (polar CIELUV), CIELAB, and polar CIELAB. Qualitative, sequential, and diverging color palettes based on HCL colors are provided along with corresponding ggplot2 color scales. Color palette choice is aided by an interactive app (with either a Tcl/Tk or a shiny graphical user interface) and shiny apps with an HCL color picker and a color vision deficiency emulator. Plotting functions for displaying and assessing palettes include color swatches, visualizations of the HCL space, and trajectories in HCL and/or RGB spectrum. Color manipulation functions include: desaturation, lightening/darkening, mixing, and simulation of color vision deficiencies (deutanomaly, protanomaly, tritanomaly). Details can be found on the project web page at <http://colorspace.R-Forge.R-project.org/> and in the accompanying scientific paper: Zeileis et al. (2020, Journal of Statistical Software, <doi:10.18637/jss.v096.i01>).