How to play a safe holi?

Holi is played by throwing colors on each other, but it is important to know that these colors can be really harmful for our skin. These colors are made from chemicals which can leave a negative effect on the skin. A harmless holi can be played with natural colors which are healthy for our environment and ourselves. These natural colors are easily available and can be made at home also. They are cheap and fun to play with.
I love my skin and would be opting for natural colors only. What about you...?