That's very true, maybe I should head off and do some research!
But my point is, I didn't start using number 14 because somebody else told me to, I starting using it as when I used the number 15 as was the done thing back in the day it didn't look right.
So I looked at all my ref pictures and decided that the dark blue was just that, too dark. I looked for another better blue matching the real costumes and then I started using number 14.
That's how progress is made, read as much as you can, then try things out for yourself. If it works great, pass it on, if it doesn't try something else...