DMC 820 to Cosmo: Thread Conversion

Cosmo 142 is a close match for DMC 820 Very Dark Royal Blue. Cosmo's silkier thread finish gives their equivalent a slightly more luminous quality in person, and the color itself may read marginally different depending on your fabric and lighting. For geometric designs with long diagonal lines in deep royal blue — where Cosmo's shinier surface might change how stitch tension inconsistencies catch the light — the DMC or Anchor exact-rated alternatives produce a more uniform-looking fill in large areas.