Does weed that's already dark purple turn darker if introduced to cold temperatures or stay same?

I have one plant in particular that's very dark.

Be careful tho people tend to like purple it can boarderline grow mold if expose to cold temperatures

Cooler temps can have an effect on colour but imo your best just keeping your temps in the correct range, extreme temps will stress your plants and for a bit of colour its not worth it.

Happy Growing!!