The colors featured here are Iridescent Blue (left) and Periwinkle (right).
Iridescent Blue is described as blue with warm undertones. I’m not sure if you can see it well in the picture, but this is a shimmer eye shadow. The picture above looks darker than the picture on their website, but I think this one is more true to life. I see it as a slightly shimmery dark blue. It has decent staying power and doesn’t get in eyelid creases.
Periwinkle is described as a shimmery baby blue. The picture is true to life, although it’s not as shimmery as described. It’s a nice, vibrant, but not scary 80’s eye shadow blue. This is a nice spring/summer shade and has pretty good staying power.
The two shades look good together, but be careful with the blending!