Slight problem with the Hurricane mainly because I've over thought it

In the old days I would have just gone with my first thoughts
The undersides will be Sky Blue. Now this is one of those colours for which IPMS Stockholm is no help, it simple refers to an FS Number. I looked at a thread on Brit Modeller and just got completely lost with them all trying to impress each other with their "knowledge".
So from looking at the swatch on the Stockholm link and bearing in mind we all see colours differently, I was thinking of using either Vallejo pale Blue or Humbrol 65 which I have in the stash.
Anybody know if that would be roughly ok or way out ?
Chris