Brain Game: Mars Attacks!

Sweet! It's Tuesday Test Time once again here at the mentalfloss.com Brain Game, so let's get right to it. Good luck:

M&M milk chocolate candies (a.k.a. "plain M&M's") are available via retail in individual-serving packages featuring 6 different colors of candy shells. Which 3 of those colors have been part of the mix ever since the candy's introduction in 1941?

Here are the ANSWERS.

THE ANSWERS:

BROWN, GREEN, YELLOW.

About the other three colors:
Blue was selected by vote in 1995 to replace tan.
Orange replaced red in 1976.
Red was an original 1941 color, but was discontinued from 1976-1987.

Thanks for playing! Tomorrow, it's Wordplay Wednesday.