Yes, but depending on the shade of blue you use it may be so little that no one will be able to notice.
Consider that you're using a fairly bright LCD based projector. The Grayhawk screen is going to reduce the brightness slightly giving you better blacks. I believe you'll still have a bright image that will probably dominate your visual field.
Use a flat paint (not a gloss) and try to aim at a darker colour than a brighter one.
If you are really concerned about video accuracy, you'll be limited to a neutral dark gray colour. IMHO there are more important trade offs.
Roo
Consider that you're using a fairly bright LCD based projector. The Grayhawk screen is going to reduce the brightness slightly giving you better blacks. I believe you'll still have a bright image that will probably dominate your visual field.
Use a flat paint (not a gloss) and try to aim at a darker colour than a brighter one.
If you are really concerned about video accuracy, you'll be limited to a neutral dark gray colour. IMHO there are more important trade offs.
Roo