SwiftUI Colour picker wheel

Colour

July 11, 2025

A colour wheel made all in SwiftUI.

There are 2 different colour wheels to choose from.

The first main one uses CIHueSaturationValueGradient CIFilter to draw itself, then uses RadialGradient and .blur to smooth it out. Named ColourWheel in code.
The second one uses SwiftUI’s AngularGradient with all 360 hues to draw the gradient, then a RadialGradient and .blur to smooth it out. Named NewColourWheel in code.

If you would like to use the slider to change brightness/value, use ColourWheel, as NewColourWheel does not support setting value at this point in time.

They both interact the same and output in [Red, Green, Blue] or [Hue, Saturation].

GitHub

View Github

#colorpicker #colorpickerview

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