Why can't the curtains be blue?

Curtains can be blue. According to the traditional custom, use soft light colors such as goose yellow and sky blue to calm the mood, ensure the sleeping atmosphere, and make the bedroom convergent and easy to take care of. Curtains must match the overall color of the room. If the room is warm, the color of the curtains should be cool. If the room is cold, the curtains should be warm. Moreover, blue can not only reduce the light and shade, but also meet people's needs for light with different intensities; But also can prevent wind, remove dust, insulate heat, keep warm, eliminate noise and improve indoor climate and environment.