Red - the colour of blood, symbolic of love and life, but also a signal for danger - the colour of radical change, of revolution.

White - standing for innocence and purity, in some cultures for strong emotion, sometimes symbolic of joy, sometimes of grief.

Black - the symbol of grief, misery, evil, the unknown.

Un crimen sin castigo

Negroes for Sale

Runaway from my plantation

But black also represents the continent of Africa