Yellow Signs: Yellow sign backgrounds work best in visual crowded environments, for architectural and psychological factors yellow is often used. Yellow with black lettering sends out a clear information message which is needed in such an environment. Also traffic and airport signage yellow works good as background color in combination with black lettering. In a outdoor situation, yellow stands out from its background giving a clear message. In many European countries yellow is chosen as background color.
Advisable work areas: Airport signage, road signs, public spaces, indoor & outdoor usage.
