Mijello® Mission #Gold Class #Yellowish Pearl SKU - W596 Size - 15 ml. Mijello® Mission Gold Watercolor Yellowish Pearl, SKU - W596, Size - 15ml tube. Yellowish Pearl (PW6 on Mica) is a lightfast semi-transparent, semi-staining iridescent yellow color. Also known as Interference Yellow. On a black or dark color background the color appears yellow On white background the color will shift from yellow to violet depending on the angle of the light. Best used as a glaze. Mixing with other colors will reduce the effect dramatically. This color contains Titanium White and will tint other colors.