Black is the most common color in roulette, making up almost 36% of all bets. The odds of black being the first number bet in a round are about 1 in 6.
However, due to the number of possible outcomes, the odds of black being the last number bet in a round are about 1 in 36. As a result, the odds of black being the number bet on any given round are about 1 in 3600.
