求英语帝!帮忙用英语写一段颜色的特点

the 3 primative colors are red,blue and yellow.All other colors are the variation of the combination of these 3 colors.
Color changes.Mix yellow and blue,and you get green.Increase the amount of yellow,and you have light green; then reduce it,dark green.
Color affects people's feelings.Generally dark colors are believed "heavier" than light colors.And red and yellow are so noticable as to be made into the public signs.
It is color that decorates our life to be more beautiful.People change colors and vise versa.