iOS color picker view with brightness control, opacity control, and delegation support.
Objective-C Ruby
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iOS color picker that is resolution independent.

Inspired by ANColorPicker. Also uses ANImageBitmapRep for easy pixel-level manipulation.

And of course, thanks to Wikipedia.

Class Files:


Square (circle) color-picker that handles touch events, allows for brightness control, and allows for opacity control. Uses delegation to report color selection as-changed


See included example project (TestColorViewController).


  • Accelerate.framework
  • QuartzCore.framework
  • CoreGraphics.framework
  • UIKit.framework
  • Foundation.framework
  • ANImageBitmapRep (included)


See You know the drill, use at your own risk, this code is given without support, etc. And for good karma link back to this page,

Color Picker - Default Color Picker - Loupe Color Picker - Opacity Color Picker - Circle Color Picker - Resize


Pull requests are welcome for bug fixes or feature additions. If you contribute code, make sure you stick to the contibution guidelines.