Grand Trunk Blue Paint

Floquil had this at one time, but I haven’t seen any in years. Does anyone know of another source for this color? I’ve tried to come close with other paints, but it never looks “right”. In my experiments I did discover though, that Floquil Great Northern big sky blue does a great job of creating a GTW unit that has been weathered for at least 10-15 years. That blue always would fade from the sun and rain. I did a GP-9 that way and it looks great. But I want to be able to create a fresh look as well. Any tips would be most welcomed.
Thanks, Todd.

Todd, There are three makers of GTW Blue. The first one is Badger Modelflex number 16-66. The second is Floquil Polly-S number 414358 and the last is Accupaint number 6.
Marc