RGB Colour Guessing Game 2017

I made this RGB Colour Guessing Game in the Web Developer Bootcamp Course that I am doing online.
The game is built with HTML CSS and JavaScript. The objective of the game is to guess what the RGB colour is that is shown on the screen.

The game has 2 modes Easy and Hard. Easy has 3 colours to choose from and Hard has 6 colours to choose from.

This game is not just fun to play but it can Developers and Designers built their knowledge on RGB colours.

You can play the game here. You can view the source code here.