I always tell people who ask this kind of question the same thing: don't get hung up on "exact colors". There really is no such thing. Look at the model or photo and make a good approximation and paint it. Any search of "correct colors, exact colors, etc" in any modeling site will give you dozens of the same posts from actual veterans saying how the paints were often different right out of the can, and how thinning ratios, application methods, etc, all changed the outcome. Weathering, dirt, dust, grimes--even the color balance of one computer monitor vs another-all make telling "exact" colors impossible.
Based upon the photo above, I would use either Tamiya Khaki Drab or OD for the dark shade, Tamiya Buff for the yellowish shade, and of course, Black. It should look just fine.