Valentine's day is around the corner and I'm having a little issue with coloring white chocolate. I melt some white chocolate and drop a few drops of RED so that I can temper it and use it for some heart decorations. The issue is that its not turn RED. Rather, it turns like a purple berry color. I have tried water based color, oil based color, and cocoa butter based color and still not the FIRE TRUCK RED I'm looking for. Thanks.