Updated presentation given as an Ignite talk at DevOps Days Nashville on Thursday, November 10, 2016.

1. How (not)
to be a jerk to
the colorblind
Stephen Yeargin
@stephenyeargin

2. 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)

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

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

5. Source: http://www.colourblindawareness.org/colour-blindness/
Deuteranopia
Color blindness marked by
confusion of purplish red
and green

6. Tritanopia
A dichromatism in which
the spectrum is seen in
tones of red and green.
Source: http://www.colourblindawareness.org/colour-blindness/

7. Protanopia
The 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/
M
ine!

8. 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
👱
👩

9. I hate these things.

11. 😢

12. 😀

13. 0
25
50
75
100
April May June July
0
25
50
75
100
April May June July
😢
😘

14. Before
After

15. Color Coded
Text Is Evil. Don’t.

16. Utterly useless.

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

18. 😻

19. RGB(153, 102, 51)
C49%, M91%, Y0%, K1%
#BABABA
PANTONE 132C

20. How (not)
to be a jerk to
the colorblind
Stephen Yeargin
@stephenyeargin
❤