Brown color at end point during titration with phenolphthalein as indicator We did a titration experiment at school and I did not understand one part of it.

The scenario:


Titrate : White wine (ethanoic acid) 
Titrant: $\ce{NaOH}$ 
Indicator:  Phenolphthalein 


What happened: We carried out the titration and the end point was a brown colour!

How does that happen? Why is the color brown and not pink?
Assuming there are no major color-influencing side reactions, the subtractive color mixing as follows: 

#FFA8D9 (Pink, phenolphtaleine) + #DAA520 (Goldenrod, white wine) = #D2691E (Chocolate, result)

actually already gives brown(ish) color. It's hard to pick the right color codes, especially for the white whine, but OP can probably try to perform the same operation with the color he remembered/picked from the photo.