Miguel,
I would suggest looking at 103 or 104, if you look mon the website there is a page that shows each colour used on an aircraft, with differnet sections painted in different colours.
I know that monitors have different abilities to show colours properly, but you will get a reasonable showing of the shade and tone of the colours.
In truth I know very little about WW1 aircraft as I have never built one, so hopefully a brother member on the site, might be able to point you in the right direction. I have used them in the past on modern jet engines and things.
Glad to have been of help and of course will continue to try as I can
Kind regards,
John