The president lived in the White House and plants lived in the green house
Blue and Green
That will depend on the style and school that you go to. In general the colors are white, yellow, green, brown and black, but there are various grades in between and many have added additional ranks.
white or brown
White, Black, Green, Brown
green' brown 'black brown ,red'and white depends what happened to you
blue green brown and black
Her favourite colours are green, red, black and brown.
mauve, green, brown, amber, white, black, beige, ocher, peach, ivory
Green, Orange, Purple, Black, Brown, and White.
Fairly standard ranking system, it would be impossible to determine which one in specific one it is.
Willow ware comes in blue & white, brown & white, green & white, and pink & White. These colours come from 'Royal China', perhaps others, I am not sure. I have not found black & white to date, but if it exists, would like to find some!
It is the same question as; "Why are we white?", "Why are we black?," "Why are we blonde?", "Why are we brown?", "Why are we red?", ect.