Who I am ? By an unknown black author.

When I'm sunbathing, I am black
When I'm angry, I am black
When I'm ill, I am black
When I've a chill, I am black
When I've it hot, I am black
When I'm dead, I am black
When you'r sunbathing, you are brown
When you'r angy, you are red
When you'r ill, you are yellow
When you've got a chill, you are blue
When you've it hot, you are red
When you'r dead, you are white
And still they call me the Colloured one !!