Chromatography - colour and water

Dipping the ends of strips of paper into a small amount of water and watching it be absorbed. 

We first made predictions about what might happen to the colours. Will they spread, stay the same, go lighter or darker in colour shade?

We drew in felt pens on the paper - sometimes 2 colours that we knew could potentially mix together.

The interesting colour was black! Can you see what happened to that?
It was made of more than 1 colour!