There are charts available that show how to mix colours for painting. You may be able to find one in an artist's instruction book that is devoted to the medium you are using, or on the Internet. You can also check art supply shops for a colour wheel, which is a useful aid for painting. By turning the dial on a colour wheel you are able to see the results of mixing colours.
Due to the different formulations, combining paint colours will give you a slightly different result then what your colour wheel shows. However, a colour wheel is still a good rough guide for mixing colours. The better quality pigments you mix, the closer the result will be to that of your colour wheel. Higher quality pigments are called 'Artist's Grade' (as opposed to 'Student Grade'). The colours are more true. When they are combined, the result is vibrant and not muddy.
Due to the different formulations, combining paint colours will give you a slightly different result then what your colour wheel shows. However, a colour wheel is still a good rough guide for mixing colours. The better quality pigments you mix, the closer the result will be to that of your colour wheel. Higher quality pigments are called 'Artist's Grade' (as opposed to 'Student Grade'). The colours are more true. When they are combined, the result is vibrant and not muddy.