FS paint equivalents for 1966 Kuwait A.F. Hawker Hunter FGA.57

Tools, Techniques, and Reference Materials Painting and airbrushing
1

I have three FS #'s for the above Academy 1/48 kit, but cannot locate manufacturer’s (Humbrol, Gunze, Model Master, etc) numbers.

They are: FS 34140 Brown

FS20400 Sand

and Fs35231 Deep Sky Blue

can anyone help with authentic color information.