An ADA issue with PowerPoint presentations George Starkschall, PhD

Color blindness Approximately 5-8% of males and 0.5% of females are color blindApproximately 5-8% of males and 0.5% of females are color blind Color blind people may have difficulty in reading presentationsColor blind people may have difficulty in reading presentations Approximately 5-8% of males and 0.5% of females are color blindApproximately 5-8% of males and 0.5% of females are color blind Color blind people may have difficulty in reading presentationsColor blind people may have difficulty in reading presentations

Red-green color blindness A person who is red-green color blind may not be able to read this slide.A person who is red-green color blind may not be able to read this slide.

How to make slides more visible Do not use red. Red-green color blindness is the most common formDo not use red. Red-green color blindness is the most common form Use primary colorsUse primary colors Do not use pastel shadesDo not use pastel shades Use contrasting colorsUse contrasting colors Use large size font (This is 32-point)Use large size font (This is 32-point) Do not use red. Red-green color blindness is the most common formDo not use red. Red-green color blindness is the most common form Use primary colorsUse primary colors Do not use pastel shadesDo not use pastel shades Use contrasting colorsUse contrasting colors Use large size font (This is 32-point)Use large size font (This is 32-point)

How to make slides more visible Do not refer to items by their colorDo not refer to items by their color –Not “The red dot” but “The dot on the left” Do not use color to highlight a pointDo not use color to highlight a point –Use underlining or italics Do not refer to items by their colorDo not refer to items by their color –Not “The red dot” but “The dot on the left” Do not use color to highlight a pointDo not use color to highlight a point –Use underlining or italics