Smoke color

Can I change the smoke color …? The background need to be white or somewhat blue.
I don’t see the smoke in render …!!

Yes you can. Not seeing smoke usually is from missing a step in using smoke simulation. Can you see smoke in the 3d view?
fire is a different color smoke

Yes you can…

I see smoke in 3d view … my background is white therefore I don’t see it when I render it . So I would like to change the color of the smoke to back for example … how do I do that …?

You just need to set the Volume material to black.

Are you using a voxel data texture? Otherwise you get no render at all.