What colors are not primary subtractive color?

Colors that are not primary subtractive colors include secondary colors like green, orange, and purple, which are created by mixing the primary subtractive colors cyan, magenta, and yellow. Additionally, tertiary colors, formed by mixing primary and secondary colors, such as red-orange or yellow-green, are also not primary. Other colors, such as pastels and shades, result from altering the brightness or saturation of these primary and secondary colors.