Is a colored two dollar bill rare?

no they sell them online for about 30.00 $

MoreThese are genuine US $2 bills that have had a color overlay added by a private company. Their basic value is still only $2 despite the markup for being "colorized". The overlay means the Treasury considers them to be altered or damaged items.

Some niche-type collectors may pay extra for these bills if they're in their original packaging but in general there's very little secondary demand for them. Resale value is likely to be less than the original cost.