This app was removed from the App Store.



Mac OS Developer Tools

$4.99 was 9.99
Own Wish Buy Buy

NSColorCalculator has a custom Color Panel for working with colors thatʼs designed to be easy to use, intuitive, yet very powerful with the features you need to get things done fast. In a nut, itʼs a revolutionary way to choose and compare colors.

For instance, any Cocoa or iOS developer is all too familiar with certain mind- numbingly tedious tasks that have to be repeated over and over again. One of these is the dreaded: Find a color in a graphics app using its color picker panel, and then manually typing in (or copy and pasting) the numbers for each of the 4 components of RGBA or HSBA colors. Thatʼs the least painful scenario. Some of these graphics apps only have color numbers in 0-255 format, which is useless in Cocoa/iOS, so you have to manually divide the color values by the appropriate amount. In short, this is a giant PITA sandwich.

NSColorCalculator feels your pain and is here to help. With one mouseClick or menuItem selection, you can copy any color in native NSColor or UIColor code, in RGBA or HSBA format, which you can then paste into Xcode.

Of course, this app isnʼt just for developers. Artists and graphic designers will love all the options for choosing and comparing colors including the Shade tech and Component Locking that are completely unique to this app. Plus you can grab the color under the mouse from any app or anywhere onscreen by holding down the Control key.


Grab the color under the mouse in any app by holding down the Control Key.
Revolutionary Shade Tech
Color Component Locking
Custom Color Pickers
Color Ring (with automatic complimentary colors)
RGBA and HSB Sliders
RGBA and HSB Gradient Bars
Swap Current and Previous Colors
Store Colors to Disk.
Store 100 Color Shades with one click.

You can copy the current color as a Native Cocoa or iOS Code String to the pasteboard, which you can then paste into Xcode. Here are the current Code Options:

⌘4NSColor object in Calibrated RGBA
⌘5NSColor object in Calibrated HSBA
⌘6NSColor object in Device RGBA
⌘7NSColor object in Device HSBA
⌥4CIColor object in RGBA
⌥5CIColor object in RGB

⌘8UIColor object in RGBA
⌘9UIColor object in HSBA

⌘ 0 CGColor object in Generic RGBA

I encourage you to send feedback or feature requests, or if you have any questions, to

It would be cool if you would rate the app and write a review, and of course tell all your friends about it.

Show More...

What's New

Fixed mouseMoved bug when the cursor goes within a TextField.

My Rating

App Store Rating