Liquid getting darker with Optifine

Hi everyone. So, I was making a brown liquid that should represente chocolate, and in the test game, it showed perfectly borwn, but when I tried exporting it to try it with Optifine, it turned dark blue (almost black). I tried removing Optifine and restarted it from the launcher, and it now worked again. So my question is if there is any way I can prevent my liquid turning black with Optifine. Thanks in advance.