How to mix watercolor with metallic color

Quick answer：

To mix watercolor with metallic color, you can use a watercolor paint base and add metallic pigments. Start by mixing the pigments with a small amount of watercolor medium to create a paste. Then, gradually add more watercolor medium to achieve the desired consistency. Remember that watercolors are transparent, so the metallic effect will be more subtle. For a brighter look, consider using metallic acrylic paints over watercolor layers.