Drag a box on the left to select a region of one color model. The right panel shows the same set of colors plotted in a different model. A continuous selection in one geometry arrives in the next as a warped, sometimes scattered blob — what is continuous in one model is gerrymandered in the other. The Berlin–Kay board is the 330-chip Munsell array used in the World Color Survey, arranged by hue column and lightness row; each chip sits at maximum chroma for its hue and lightness, so the array is the outer layer of the Munsell color solid laid flat.