The other day my milk was orangy, I'm sure it was due to all the yams I was eating. Another time it was bluish, don't know why, buy obviously something I ate! Also I've seen pinkish, yellowish, never brown yet. I wonder what you ate? I would not dump it if I were you.
Yes, your breast milk's color and taste will change according to what we eat. Our lucky bfed babies get a varied tasty diet. Then we can also skip feeding them bland jarred baby glop, and they will take right to full flavored table foods. It's all good.