Hallo Mlmcdonald,
To begin with, use the link.You can find there some interesting infos and samples of German WW2 colours.
http://www.ww2aircraft.net/forum/ai...twaffe-aircraft-camouflage-markings-9318.html
What is more use the link :
WINGS PALETTE - Junkers Ju.87 Stuka - Germany (Nazi)
Now some infos on Stuka camouflage patterns.
The Ju 87 prototypes weren't painted at all ( were of aluminium colour ),the national markings painted on fins and rudders only ),callsigns ( registration signs) black painted on fuselages.The first camo pattern was used with Ju 87A in 1937.It was three-colour pattern with sharp-edgy camo spots of RLM62 - Grun / RLM66 - Shwarzgrau / RLM63 - Hellgrau paints. RLM63 was used for painting both upper and undersides and sides of a fuselage as well.The camo was painted using a pattern, the same for all planes.In 1938 the new four-colour camo was introduced for Ju 87s.All spots were angular with sharp broken straight edges of RLM62 - Grun / RLM61 - Dunkelbraun / RLM63 - Hellgrau / RLM 65 - Hellblau on lower surfaces.German national markings on fuselages and wings and black swastik in white circle on red wide strip painted on a fin+rudder.At the beginning of 1939 thr red strip was removed from tails and the black swastik was painted directly on the camo colours.In September 1939 the next camo pattern was introduced.The two-colour pattern was painted with RLM71 - Dunkelgrun / RLM70 - Schwarzgrun / RLM65 - Hellblau. The camo spots were painted with a pattern which was the same for all aircraft.This camo of Ju 87 was used for all models of Stuka up to the end of war.
A little bit different camo pattern of Ju 87s was the desert one.For the camo there were used these colours : RLM79 - Sandgelb / RLM65 Hellblau on undersides / RLM71 - Dunkelgrun for small spots painted with an airbrush on upper and side surfaces ( painted with Sandgelb ).There was a temporary kind of the desert camo used for Stukas with standard RLM70/RLM71 camo pattern made airbrushing RLM79 spots on upper and side surfaces.
The next variant of the desert one was like the standard one but there were used RLM79 Sandgellb / RLM 80 - Olivegrun / RLM78 - Azurblau instead of RLM71/RLM70/RLM65 colours.
The winter camo rested on painting irregularly the white colour RLM21 on standard RLM71/RLM70 camo pattern ( upper and side surfaces).The white paint was quite easy washable, that's way the Stukas with the camo looked like dirty and very run-down.The longer a plane was used the more of the white colour was disappearing.
The night camo for early Ju 87s all surfaces painted with RLM81 - Braunviolet or what was quite rare, with RLM22 - Schwarz.
The camo for later Stukas appeared in two variants :
1. all upper surfaces painted with RLM70 Schwarzgrun - then airbrushed a big number of small spots,mottles and smudges of RLM02 - Grau / RLM65 - Hellblau / RLM74 - Graugrun. RLM75 - Mittelgrau on undersides.
2. all upper surfaces painted with RLM02 - Grau with many spots of a different size of RLM70 and RLM65. Lower surfaces were painted with RLM75.
Additinal colours RLM21 - Weis, RLM27 - Gelb for quick ID elemets ( stripes, yellow painted engine cowlings, rudders, wing tips, etc..)
All these colours were matt.If you have other question,feel free to ask.I hope I have helped a bit.