We investigate whether stellar population information can be recovered from galactic dynamics. Starting from observed rotation curves, we construct synthetic stellar population mixtures constrained to reproduce the effective mass distribution. From these populations, we compute ultraviolet and optical colors and compare them to GALEX and SDSS observations. We find statistically significant correlations between predicted and observed color indices across multiple bands, including FUV—NUV, g − r, r − z, and NUV—r. Rank—rank correlations reach significances up to ≳ 5σ, indicating that the ordering of stellar populations is encoded in the dynamical information. These results show that rotation curves contain non—trivial information about stellar population structure beyond their standard interpretation as mass tracers. This behavior is consistent with a picture in which the effective dark mass component reflects gravitational binding energy, linking dynamics and stellar population properties.