"Blue is New" 10 x 8 pastel $125
I remember when Mars introduced the blue M&M, but in case you don't, here is the chart that chronicles all the years since 1940. I certainly long for the 1940s and that violet.
Red candies were eliminated in 1976 because of health concerns over the Red #2, which was a suspected carcinogen, and were replaced with orange-colored candies. This was done despite the fact that M&M's did not contain the dye; the action was purely to satisfy worried consumers. Red candies were reintroduced ten years later, but they also kept the orange colored M&M's.