Our Access Signs are offered in three different color schemes. Apart from White on Blue, these signs are offered in White on Green and White on Brown combination. SignatureSign with lettering “Wheelchair Accessible Entrance” is offered in 4 designer colors - Green Normal, Green Reversed, Burgundy Normal, and Burgundy Reversed - all suitable for upscale properties. ADA requires signs (including entrance signs) to have a very high light to dark (or vise versa) contrast between characters and their background. Colors do not play as much role as the contrast do. That is why white characters on a dark background, or dark characters on a white background are very common. That presents a very high contrast.