My favorite color is Blue. It is one of the 3 primary colours
My favorite color is blue as well.  What does primary colors mean?
A primary color is a color that can be combined in varying amounts to produce other colors
My favorite color is blue as well.  What does primary colors mean?
A primary color is when a color can be combined with another color to create other colors 
Interesting!  I didn't know that!  So all colors come from the 3 primary colors?
RGB color model
The RGB color model is an additive color model in which red, green and blue light are added together in various ways to reproduce a broad array of colors. The name of the model comes from the initials of the three additive primary colors, red, green, and blue.
The main purpose of the RGB color model is for the sensing, representation, and display of images in electronic systems, such as televisions and computers, though it has also been used in conventional photography. Before the
, take fine lac [red lake], ultramarine blue (the same amount of the one as of the other) with a binder" he noted that it could also be made by mixing blue indigo and red hematite.
In modern color theory, also known as the RGB color model, red, green and blue are additive primary colors. Red, green and blue light combined together makes white light, and these three colors, combined in different mixtures, can produce nearly any other color. This is the principle