Is B3 blue the same as UU1 Blue?

Your answers were a bigger help than you can imagine. My friends 67 is nice but the blue a bit lighter than I prefer. Why did I think mine was the same? It sat outside in California from 68 to about 2000 so had faded quite a bit. What prompted this question was my disassembly process and I kept turning up pieces a darker blue that I actually like...not to mention the firewall was much bluer. So, Instead of changing the color (I've done it before and realize what a huge job this is) I am keeping it the same. There is almost no rust even under teh car and the trunk is good to go as if including the inside of the deck lid. So you have saved me a huge amount of work and confirmed that this is a blue I really like. You all have chosen the color for my car and I couldn't agree more. Thanks everyone.

PoisonDart74: Sorry, I didn't follow your post. Not sure what you meant about time or a car being painted the same color. Try again maybe

Oldmopardude: I appreciate the great amount of work you put into this and it really was a big help.
KrazyKuda and YY1, thanks to you as well. This is a big relief for me. I was not looking forward to all the work I was going to need in order to change the color. Your information did the trick.