DMC 806 to Cosmo: Thread Conversion

Cosmo 452 is a close match for DMC 806 Dark Peacock Blue. Saturated teal-blues can shift noticeably in either a more blue or more green direction in close-rated substitutions. For peacock designs where 806 and 807 work together as the dark and light peacock values, checking that Cosmo 452 reads consistently with your mid-value Cosmo peacock thread in natural light is important for maintaining the hue family coherence of the design.