There are a few things to keep in mind when mixing blue paint. First, blue is a primary color, so it can be mixed with other primary colors to create new colors. Second, there are three main types of blue pigments: cobalt, ultramarine, and Prussian. Each type has different properties that will affect the finished color of the paint.
To mix a basic blue, start with equal parts of cobalt and ultramarine pigments. These two colors will create a bright, vibrant blue. To add depth and richness to the color, mix in a small amount of Prussian blue pigment. This will give the final color more body and make it closer to navy blue.
When mixing any kind of paint, it's important to experiment on a scrap piece of paper or fabric before applying it to your project. This will help you get an idea of how the colors will interact and what proportions you need to use. Have fun mixing different shades of blue until you find the perfect one for your project!