Use not only different colors but also a combination of different shapes, positions, line types and coloring patterns, to ensure that information is conveyed to all users including those who cannot distinguish differences in color.Ĭlearly state color names where users are expected to use color names in communication. 3(+1) principles of Color Universal DesignĬhoose color schemes that can be easily identified by people with all types of color vision, in consideration with the actual lighting conditions and usage environment. Here are some comments on how to make figures and presentations colorblind friendly. When preparing your presentations (papers, slides, documents, advertisements, web pages etc.) as well as public facilities and industrial products, please take this into account. If you design a facility or industrial product that will be used by 10,000 people, 400 of them would be colorblinds. There should be more than TEN colorblinds in a room with 250 people. There are always colorblind people among the audience and readers. One in twelve Caucasian (8%), one in 20 Asian (5%), and one in 25 African (4%) males are so-called "red-green" colorblind. The frequency of colorblindness is fairly high. But certain ranges of colors are hard to distinguish. Colorblind people can recognize a wide ranges of colors. PDF and PowerPoint files for brochure and presentationĬolorblindness is not a total loss of color vision.Note: When using colorblind proofing systems (important!).Colorblind proofing (checker) software and hardware.Set of colors that is unambiguous both to colorblinds and non-colorblinds.How to select colors that are easier to distinguish.Three-channel pictures When assigning colors to drawings.Figures of fluorescent staining (microscope images and DNA chip).NEW: Adobe Photoshop/Illustrator with colorblind proof functionality released. University of Tokyo, Institute for Molecular and Cellular Biosciences (Japan)
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