Lots of people have been remarking how similar the old heathered paris pink define jacket (released in 2011) is in comparison to the new one in heathered jeweled magenta. Here's a pic to illustrate exactly how they compare, with JM on top and PP on the bottom. You can see here that JM is a bit darker while PP has slightly more blue undertones. Also, I've heard several people mention that PP is ...
color comparison
Color Comparisons: Regal Plum vs Ultra Violet and Electric Coral vs Very Light Flare
I know a lot of people, myself included, have been trying to put their finger on exactly how electric coral and regal plum compare to previous lululemon colors. Hopefully these comparisons will help! Ultra violet (left) versus regal plum (right): you can see here that while the shades are very similar and definitely both in the "magenta" category, regal plum is a bit darker, though it's not ...