There is a way to really know which colour peoples clothes were? In the case of Court Gowns it's easy, for we know how exactly they were...But for daily life dresses and suits? We also have the summer little dresses OTMA wore when very little, so we are aware about their colour. However, I don't think we can really know about the rest of their clothes...
I was thinking about it, for I saw some colorizations (not only here) where colours seems not to fit what was fashionable back then. I have more than 300 old magazines from OTMA's time with publicity of clothes, furniture, toys , etc and the colours casted there are not always those used in colorization. For example pink (especially this fucsia kind of pink) was not fashionable for girls those times. Maybe a shawl, a sash in pink will be O.K...but the whole dress in this kind of pink? Ugh...Not for the 1900's! (and I don't like it today...girls seems to be pink meringue wearing these pinky clothes!

) It will be the same for electric blue (France blue) and "parrot green" (I can't explain it better) and too bright yellow..Of course they would wear pink, blue, green and yellow, but not those kind of pink, blue, green and yellow...
Of course, I've not authority to say this, since I don't even know how to colorice a circle with a PC program, but since I love fashion's history I think I can help in some way...If I didn't hurt someone...

RealAnastasia.