Free Color Picker is an Open Source app for capturing the color of any pixel.

This portable app is chock-full of options and features that let you hone in on colors. To capture a specific color, you can move your cursor to the target and hit the F4 key. The color that the cursor is pointing to will be added to the color palette located at the right-hand side of the UI. You can also utilize color capturing, which permits you to magnify the area for the current cursor position (mas magnification is 30x).

Any color captured by Free Color Picker can be modified using the built-in color editor. Additionally, Free Color Picker permits you to employ a modification of the entire color palette. For example, sorting according to various criteria, generating random colors for given ranges of RGB component colors, searching for triad colors on a color wheel, and many more.

Free Color Picker is well-rounded and contains pretty much everything that you need for pixel color usage, and will be a great asset not only to web designers but anyone looking for just that right color combo.

Free Color Picker Features:

Capturing the color of the pixel under the cursor (F4 hotkey).
Copy the color code under the cursor to the system clipboard in the format selected by the user (F3 hotkey).
A screen magnifier that enlarges the screen content around the current cursor position with a maximum magnification of 30x.
The ability to set the algorithm used for zooming. The default algorithm - Box - does not change the color values. The other algorithms use color interpolation - they calculate the colors of empty pixels created after enlarging the image based on the colors of neighboring pixels in the original image. The most accurate but also the slowest is the Lanczos algorithm.
The ability to capture the pixel color at user-specified screen coordinates.
Automatic capturing of color under the cursor at user-specified time intervals.
Collapsible main window of the program (F11 hotkey).
The ability to pick up colors from PNG, JPG, BMP, and GIF graphic files opened in the program.
Displaying color numeric codes and copying them in 9 popular formats used on websites and various programming languages.
Saving and loading color palettes in a proprietary format (JSON text files with the .colors extension) and the format used by the GIMP program (.gpl files).
An advanced color palette editor that allows you to change the name and value of each color, sort, number, move, add and remove colors, insert colors from external files into the current palette.
Advanced color palette sorting: by number, name, value, the intensity of RGB channels, CMYK color space components (cyan, magenta, yellow, black), and HSL color space components (hue, saturation, brightness).
The possibility of many modifications of the entire color palette: color conversion to grayscale, inversion, change of brightness, contrast, setting color fading, mixing each color of the palette with the selected color, changing the HSL components of each color by the given value, inversion of selected RGB channels, setting the value of selected channels RGB to a given fixed numeric value or their change by a given size.
Generating random colors for user-specified ranges of RGB channel values and ranges of HSL component values.
Generating gradient colors with a given start and end colors.
A color mixer calculating the color obtained after mixing the two colors given by the user.
The color wheel of the HSL space with a graphical representation of the complementary, triadic and tetradic colors.
Drag and drop support when opening color palette files and organizing colors in the Color palette editor.
The ability to export a color palette to an HTML file with a color table for publication on websites.
Built-in multi-language support mechanism based on INI text files with UTF-8 encoding. To write subsequent language versions, an ordinary text editor is sufficient, i.e., the system Notepad.

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