The 12 wt. and 30 wt. colors are identical. The 50 wt. Cotton+Steel colors or the small spools of 50 wt. (same thread), are almost. There are a handful that are not in our cotton line, that the Cotton+Steel fabric people requested specifically to match their pattern lines. For instance 1366 Greige is not in our heavier cotton thread lines. But if the color number is in our other cotton lines, then yes, it's the same. We do have a Real Thread Chart
for this thread line, too. And I've attached a paper chart, that might be helpful - but never as helpful as the real thread chart.