Distribution of ﹩(V-{K}_{{\rm{s}}})﹩ values for the member sample with rotation periods in both Praesepe (solid line) and the Pleiades (dotted line). The y-axis is in units of sample fraction. We are sampling the same range of ﹩(V-{K}_{{\rm{s}}})﹩ values overall in the two clusters; there are notable differences at the bluest and reddest ends.