I love the color blue!
I have always been fond of the color blue. It is one of the three primary colors.
What are the other primary colors?
I believe green and red. Blue lies between green and violet on the visible light spectrum.
That is cool.  What are the other types of colors called other than primary colors?
You would have to ask a person knowledgeable about that subject. The color blue has always been important in decoration and art since ancient times though.
Why is blue such an important color in decorating?
Different cultures have different reasons. Blue was used a lot in the windows during the Middle Ages in the Cathedrals.