Thread color conversions

Madeira thread, number by number

413 Polyneon numbers and 288 Classic Rayon numbers, each with its Isacord 40 equivalent from Amann's own chart, plus Candle Thread for Polyneon and Simthread for Rayon where those makers publish one. Pick a number, or search the full charts on the Polyneon to Isacord converter and the Madeira Rayon to Isacord converter.