A color picker has been added to make choosing colors easier. With a click on a color preview swatch (the ones showing RGB color) the color picker pops up, with a field, a palette, and number controls to choose from.

Since the color picker's functionality is part of the Blender UI toolkit, it can be reused in other areas as well. This example shows the picker in a floating Panel in the 3D Window. The standard object properties window (N Key) changes to the color picker in Vertex Paint and Texture Paint modes. The Paint panel in the UV Image Editor also uses this.