Before you start your painting, you should know the basic color to combine your paint color. Without the basic information, it will make your color combination not nice.
Primary Color
Primary colors are color that cannot be formed by any combination color but if you mix any two primary colors, it will make other colors. There are three primary color which are red, yellow and blue. If you mix three primary colors, it will produce black color.
Red + Yellow + Blue = Black
Secondary Color
Secondary colors are formed by combinations of two primary colors. There are orange, violet and green.
Red + Yellow = Orange
Red + Blue = Violet
Yellow + Blue = Green
Tertiary Color
Tertiary colors are derived by mixing a primary color with a secondary color. The names of tertiary color are start with primary color then secondary color. Below are the example of tertiary colors :
Red + Orange = Red-orange
Red + Violet = Red-violet
Yellow + Orange = Yellow-orange
Yellow + Green = Yellow-green
Blue + Violet = Blue-violet
Blue + Green = Blue-green

Primary Color
Primary colors are color that cannot be formed by any combination color but if you mix any two primary colors, it will make other colors. There are three primary color which are red, yellow and blue. If you mix three primary colors, it will produce black color.
Red + Yellow + Blue = Black
Secondary Color
Secondary colors are formed by combinations of two primary colors. There are orange, violet and green.
Red + Yellow = Orange
Red + Blue = Violet
Yellow + Blue = Green
Tertiary Color
Tertiary colors are derived by mixing a primary color with a secondary color. The names of tertiary color are start with primary color then secondary color. Below are the example of tertiary colors :
Red + Orange = Red-orange
Red + Violet = Red-violet
Yellow + Orange = Yellow-orange
Yellow + Green = Yellow-green
Blue + Violet = Blue-violet
Blue + Green = Blue-green