24736

Step 1) Take between 50 to 100 veiwings no mor no less per go
Step 2) Look at the right hand side of the graph and either round up or down based upon the level in between.
Step 3) Make a guess
Step 4 ) It should take you around 10 rounds to reach the 1000 marker.

NOTE: Before hand make a list of the possible colour combinations so to match the right hand side graph with the most pausable explanation.