Artificially Blue Orchids?

[mrsdepew]

Hello All,
My local florist has on occasion offered blue orchids for sale. But I'm pretty sure these are probably just white phalaenopsis that have been watered with colored water, as the color is quite electric sky blue.
However, the color is quite lovely and I have considered buying them but I have reservations. Would artificial color be bad for the plant after a while?
If it re-blooms white several months later I guess I would know but I don't want to buy a plant that just going to die from unnatural treatment.
Any experience or suggestions?
Thank you,

Anna