Colours and what they impart

Think of the unlikihood of the following:

Green lies
a blue heart full of sin
black valentines
purple nippled breasts
yellow the colour of blood.

A night pink as ink
a grey cheese moon
the healthy orange skin of an excited child's face
white and black as the colours of Xmas.

Odd isn't it that we expect certain things to be certain colours and our mind rebels at the thought of a variation. We can't comprehend things being colours they should not, something would be wrong and we would be tempted to take up paint brushes to make the necessary changes.
Some things our mind can accept and others it cannot.