why red and green for christmas colors

It's a mystery why the colors red and green have become associated with Christmas, but it's believed to be rooted in the use of evergreen trees as Christmas decorations. The evergreen trees, which stay green all year round, were thought to symbolize eternal life and were used in ancient traditions to welcome the return of spring. The bright red berries on the trees, such as holly and mistletoe, were also seen as symbols of life and were used to decorate the trees. As time went on, the red and green colors became associated with the Christmas season and have remained so ever since.