DMC 645 to Cosmo: Thread Conversion

Cosmo 160 is a close match but is also listed as the equivalent for DMC 644 Medium Beige Gray — meaning Cosmo doesn't differentiate as finely at this point in the value scale. In practice, Cosmo 160 sits between the two DMC values. For deep shadow-floor work where DMC 645's very-dark quality is needed, the Cosmo may provide insufficient depth. Compare against your lighter gray threads to confirm it reads as dark enough before using as a shadow foundation.