Dark greenish-brown paint or dye is created by combining green and purple. Color mixing is the process of combining two or more colours to produce a new hue.
Subtractive and additive colour mixing are the two different types. These techniques use several primary colour schemes.
Yellow, magenta, and cyan are the three subtractive primary colours used to mix colourants such as paint, dye, and ink. These three hues used together produce the colour black.
Red, green, and blue are the three additive primary colours used to blend light or illumination. White results from combining these colours. Magenta is produced by combining red and blue, yellow by combining red and green, and cyan by combining blue and green.