I've found a roulette online game system it relies on betting color - strategy.

I've tested it on demo and it really works, but I'm a bit scared investing money in it, what do you think about it?

Personally I'm skeptical about any roulette betting systems whether they be applied to play at online casinos or offline casinos. Roulette is really a game of chance and should be looked at as such. Because the outcome of the event itself (ball stopping on a particular number) is completely random it's hard to believe that there are actually any roulette systems out there that truly work. I've heard people in the past mention that they feel that certain online casino roulette variations offer better payouts and have a bias that's favorable to the player which I find really hard to believe as well.

If you feel that you want to test this system out my suggestion would be that you start with a small amount of money and see where it goes. The problem there though often times is that many of these systems rely on a double up strategy which often times means you need a significant bankroll in order to satisfy the requirements of how the betting system works...

Anyways hope this reply was of some help to you!