GIF - Color tool for designer

What colors I'll choose for my next creation?
How many different colors I'll use?

Who has never asked himself those questions ?

This weekend I started a project I had in mind for a long time.
Make a tutorial recalling the basics of color to help designers to choose the right colors for their creations.

In this first part, I quickly explained the basic of the color wheel.
thereafter I would speak about how many color choose ?

The site in progress : Here

If you wish to participate in this project do not hesitate to email me !
I'll need a little help for the English translation... ;)