I had to make an in-store exchange and was surprised by how pretty serene blue is in person! I thought serene blue would be too close to starch blue to justify a purchase, but it pulls much more as a purple/blue than a white blue like it looks online. I ended up grabbing the 4” aligns

I have a lavender frost tank on the way and I feel like this color is probably a perfect in between mix of lavender frost and starch blue. I’ll post another comparison when it comes in.