Example of Hard Rock #1 Roulette Chip. Released 1995 #1 table had 7 colors:

Example of Hard Rock #2 Roulette. Released 1995 #2 had 7 colors:

Example of 5 table sets (7 colors) released 1996:

Example of 5 tables sets (7 colors) released during 2000:

Here's all three versions shown in a single image: