Ultramarine Blue is a rich, warm blue that captures the colours of the deep sea. When mixed with a red pigment, this is the ideal shade for a luxurious, beautiful purple. Because this hue is less chromatic, it works very well in realism projects. This ink comes straight from the Empire Inks Color Set, which includes ten vibrant colours that help you take charge of your own palette, allowing you to mix over 100 colours.