If you have people that work too slow in an office that has repetitious actions and the walls are typical beige, white or cream color; productivity will increase by approximately 12% by painting the walls red.
If you want a happy outlook; people working together without in fighting and prduction rates increasing 30% and creativity by 100% then use a shade of Purple.
If you get argument about painting the office purple; it proves the point and we know you have typical cream, beige color on your walls.
You probably need to add some Purple borders to your red room.
Or; just keep some cans of Purple Stuff around and save yourself the time and money of painting.