Sometimes you would like to blend two colors into one, dynamically; for example as ViewPager gets scrolled, you want one color to dynamically change to the other color smoothly.
In this case, ColorUtils would be helpful.
In this talk I talked about how I used ColorUtis to achieve the desired UI by giving example of the implementation detail for Torte application.
See also:
ColorUtils | Android Developers
https://developer.android.com/reference/android/support/v4/graphics/ColorUtils.html
shaunkawano/android-color-blending-sample: Sample Android application demonstrating how color blending can be achieved on Android
https://github.com/shaunkawano/android-color-blending-sample