AFAIK that called Candlestick Chart. It usually used to predict trends and market volatility. The name Heikin-Ashi came from Japanese language which means average (IIRC)
The color is used to distinguish price movement, blue = increase while brown = decrease. Be aware that color may differ on other chart, white-black pair or red-black pair is usually used.
I'm pretty sure someone will correct me if I'm wrong. :p If not, then please visit this site which contain detailed info and technical explanation.
http://www.investopedia.com/articles/technical/04/092204.asp
http://www.investopedia.com/active-trading/
Good luck, live long and prosper
Thanks for the reply! I will definitely check out these 2 links I still have a lot to learn, but I'm very interested in this