Abstract: A chromatic data storage system includes a substrate. The substrate includes nanoparticles operable to emit light frequencies (e.g. color) based upon a magnetic field strength, and a curable material operable to solidify spacing and/or orientation of the nanoparticles. In addition, the chromatic data storage system includes a writer operable to emit a magnetic field, and further operable to cure the curable material. Furthermore, the chromatic data storage system includes a reader operable to photodetect the light frequencies, wherein the light frequencies represent computer-readable instructions.