Children’s clothing used color to differentiate genders from the beginning of times. In the olden days where little boys looked like little girls,and vice versa the distinction can be made by the color of the clothes. Little girls wore different shades of pink and little boys wore different shades blue, this is still true today as it was in the era of days gone by.
In the olden days,when pictures,and paintings were black and white it was not easy to distinguished if a child was male or female. Although the color made a distinction in person children clothing had to also be different in general appearance as well in order to determine the gender. This was also manifested by the hair style. It became conventional that little girls wear pretty dresses and their hair long while the little boys would wear the pants and sport short hair. However due to the evolution of time, little girls of today have adopted to wearing pants but the day hasn’t come yet where the boys adopted the dresses of girls!
So I think is important to keep that conventional way of making a distinction of Children Clothing by using different colors for each gender.