How (not) to be a jerk to the colorblind

Stephen Yeargin@stephenyeargin

What exactly is colorblindness?What exactly is colorblindness?

• Malfunctioning “cones” in the back of the eye

• Red / Green (4 kinds)

• Blue / Yellow (2 kinds)

• Full colorblindness(2 kinds)

http://www.webmd.com/eye-health/picture-of-the-eyes

http://en.wikipedia.org/wiki/Retina

Source: http://www.colourblindawareness.org/colour-blindness/

Deuteranopia

Color blindness marked by confusion of purplish red and green

Tritanopia

A dichromatism in which the spectrum is seen in tones of red and green.

Source: http://www.colourblindawareness.org/colour-blindness/

ProtanopiaThe spectrum is seen in tones of yellow and blue with confusion of red and green and reduced sensitivity to monochromatic lights.

Source: http://www.colourblindawareness.org/colour-blindness/

Mine!

1:12

1:200

“As many as 8 percent of men and 0.5 percent of women with Northern European ancestry have the

common form of red-green color blindness.”

Source: https://nei.nih.gov/health/color_blindness/facts_about

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I hate these things.

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Color Coded Text Is Evil. Don’t.

Utterly useless.

Source: https://designshack.net/articles/accessibility/tips-for-designing-for-colorblind-users/

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RGB(153, 102, 51)

C49%, M91%, Y0%, K1%

#BABABA

PANTONE 132C

How (not) to be a jerk to the colorblind

Stephen Yeargin@stephenyeargin

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