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Signs
!['Open' signs on commercial buildings - why are most of them red? [closed]](https://itqualityassurance.com/storage/img/images_3/open_signs_on_commercial_buildings_why_are_most_of_them_red_closed.jpg)
'Open' signs on commercial buildings - why are most of them red? [closed]
Why are open signs red?Which Colour is best for signboard? Why are open signs red?The primary reason behind the phenomena is that the color red enha...