"Colorblindness" is a defect of the retina – eight to ten percent of men and one percent of women are affected by this imperfection of color vision. Colorblindness is characterized by the inability or impaired perception of red, green, red-green or blue-yellow visual information. (see wikipedia)
Should architects or designers take color blind users into special consideration when designing? Especially critical information shouldn’t only depend on color information like maps, escape routes and other orientation guides. (see iPhone Available: Except To Color Blind Users, on iloveux.com) .
Adobe will offer in the next Photoshop version color universal design (CUD) support. The program’s soft proofing features can simulate color blindness, making it easier to create accessible signage and other artwork. Websites like Etre's color blindness simulator might offer the same functionality online.
'Design' should be usable / accessible for all people regardless of visual or motor impairments.
