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Cartography for Color Blindness

Cartography for Color Blindness. Khem So (khem_so@fws.gov) 9/21/2011. Why design for colorblindness?. The frequency of colorblindness is fairly high. 7 to 10% of the overall male population is red-green colorblind. Colorblind people cannot distinguish certain colors. What you can do!.

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Cartography for Color Blindness

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  1. Cartography for Color Blindness Khem So (khem_so@fws.gov) 9/21/2011

  2. Why design for colorblindness? • The frequency of colorblindness is fairly high. • 7 to 10% of the overall male population is red-green colorblind. • Colorblind people cannot distinguish certain colors

  3. What you can do! • Color Universal Designhttp://jfly.iam.u-tokyo.ac.jp/color/

  4. More things you can do! • Select colors that are easier to distinguish (e.g., ColorBrewer) • Ensure that there is enough contrasts in brightness & saturation between foreground and background • Make texts or objects as thick or BIG as possible • Caution when using RED

  5. Resources • ColorBrewer 2.0http://colorbrewer2.org/

  6. Resources • Color Deficiency Color Set for ArcMaphttp://mappingcenter.esri.com/index.cfm?fa=arcgisResources.gateway

  7. Resources • Color Oraclehttp://colororacle.cartography.ch/ • Real-time colorblindness simulator • Design Tips for Color Vision Impaired • Vischeckhttp://www.vischeck.com/ • Simulates colorblindness on your image • Colorblind filters in GIMP & Photoshop

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