DMC 799 to Cosmo: Thread Conversion

Cosmo 137 is a close match for DMC 799 Medium Delft Blue. Cosmo blues can sometimes appear a shade more violet than their DMC counterparts, and in a Delft palette — where the blue needs to be clean and cool without purple — that difference matters. For large-area Delft fills where any hue shift becomes more visible across the stitched surface, stitching a test area on your project fabric before committing is the most reliable approach.