If you are using standard tubes of acrylic colour (there are several brands, all of which are fine) or acrylic craft paints (in bottles) the process is fairly easy.
As burgundy is a red-purple colour you can start with a real purple and add red to it. I have found three parts purple to one part red is about right.
If you are starting with primary colours only then a mix of six parts blue to eight or nine parts red will get you a good burgundy colour. Remember to mix the paint well and use your eye to judge the colour, adjust with either red or blue as you see fit.
Maroon and white mixed together will create a lighter, desaturated shade of maroon. The resulting color will be a pale pink or blush color with a slight hint of maroon.
Maroon is created by mixing red and brown together. The exact ratios of these two colors will determine the shade of maroon produced.
red and a hint of brown/black.
Red and Maroon.
maroon
Mixing red and brown together in varying proportions will create the color maroon. Adding a touch of black can deepen the shade.
Mostly red about 25% blue, a little bit of black should make a nice maroon.
Maroon
The school colors for the University of Phoenix are maroon and gold.
Purple and red make a shade of dark red or maroon when mixed together.
Mostly red about 25% blue, a little bit of black should make a nice maroon.
Red and brown mixed together often make a deep, earthy shade like maroon or burgundy. The exact resulting color can vary depending on the proportions of red to brown used in the mixture.