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Chroma is an OS X Dashboard utility for converting colors between HSV, RGB, and HEX formats, including 256 integer, percentage, and floating point variations. Favorites can be saved to the swatch library, and exported or imported via the system clipboard.

IMPORTANT: Version 4.0 includes an all new library system, support for multiple types of data (256 integer, percentage, and floating point values), updated copy/paste, and many other updates.

To transition your old library, navigate to the location you saved it originally and copy the contents of the text file to your system clipboard. In more...

What's New

Version 4.2.2:
  • Fixes naming error that prevented text entry when saving new swatches in OSX 10.8
  • Includes all new library system, colour formats, and copy/paste features introduced in 4.0


OS X 10.6 or later

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Chroma User Discussion

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Iaian7 (Developer) Member IconDev+36
Iaian7 (Developer)

It's been a bit of a rough transition, but Chroma features should all be working again. Version 4.2.1 now uses a system-wide library preference to prevent data loss when updating or deleting widgets, and of course, bypasses the whole nightmare of having to use a separate file to store the library data (albeit nice for syncing via Dropbox, it just wasn't reliable on many mac systems where command line data truncation was an issue).

While it's possible to create multiple instances of the Chroma widget, all of which would share the system-wide library, saving in one widget would overwrite changes from other instances of the widget. For obvious reasons, I don't recommend this. :P

Let me know if you find any issues, I'll do my best to fix them!

Reply0 replies
Version 4.2.1
Grinc Member IconComment+6

I deleted all the presets you had in there by default and now it won't let me do anything. Just says "Library processing already in progress" and just stalls no matter what I click on. I even deleted the preferences file from ~/Library/Preferences/ and it just somehow recreates the file I had from before which was put into the Trash. Need to fix this.

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Version 2.1
Grinc Member IconComment+6

I'm looking for a dashboard widget that can do this, except I need to be able to eye-drop colors from stuff I'm looking at on a web page, graphic, or whatever I'm viewing. In other words, I need to be able to quickly "steal" any color's hex value currently displaying on my screen by clicking on it with an eye dropper-like tool.

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Version 2.1
Iaian7 (Developer) Member IconDev+36
Iaian7 (Developer)

HSV, RGB, and HEX conversions were broken in version 1.7, and in the flurry of errors surrounding Dashboard's unpredictable 4096 byte limit, went unnoticed till version 1.9! Rest assured, it's fully functional again in 1.9.7.

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Version 1.9.5
user icon+36
Version 4.2.1
> 5 1


Current Version (4.x)


Downloads 4,667
Version Downloads 307
Type Utilities / System
License Free
Date 22 May 2013
Platform Intel 64 / OS X / Intel 32
Price Free
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