This time is worthwhile to familiarize with two terms: a unique event and a series of events. If for example a black number (any of the black numbers) came up ten times in a row, do you think it would raise your winning chances if you bet on the red color? Unfortunately not.
For novices to Roulette: each number has a fixed color that does not change and croupier announces the winning number and its color, for instance 'Seven, red'. Why do you think the casinos show the statistics of the past spins? Do you think that such statistics has a practical value, not to say can be used as a guide for prediction of the upcoming numbers and thus their colors. This illusion is also promoted by casinos.