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How to ensure accessible use of
color in learning resources and
materials aligned to your
institution’s brand
Tamsyn Smith & Matthew Deeprose, University of Southampton
09/11/2021
Tamsyn Smith and Matthew Deeprose
https://matthewdeeprose.github.io/udlhe.html
1
Agenda
• Why accessible use of color is vital and the guidelines
we should follow.
• Sharing our simple approach to check that colors are
both accessible and aligned to an institution's color
palette.
• Invite you to benefit from this approach.
09/11/2021 2
Tamsyn Smith and Matthew Deeprose
https://matthewdeeprose.github.io/udlhe.html
Ensuring equitable access to our learning
environment has never been more important.
09/11/2021
Tamsyn Smith and Matthew Deeprose
https://matthewdeeprose.github.io/udlhe.html 3
Color Contrast
• 86% of web pages have low contrast text.*
• 44% of files uploaded to the Learning Management
System have at least one contrast issue. **
“I tend to skip over text that has low contrast because
it’s too much of a strain to read it.” ***
* WebAim ** Blackboard *** Joe Banks, Tech Lead at 23andMe
09/11/2021 4
Tamsyn Smith and Matthew Deeprose
https://matthewdeeprose.github.io/udlhe.html
Examples of poor contrast
09/11/2021 5
Tamsyn Smith and Matthew Deeprose
https://matthewdeeprose.github.io/udlhe.html
Above examples have insufficient contrast
Black text on light backgrounds
Your Feedback
Assignment
deadline
Semester 2
timetable
Exam information
09/11/2021
Tamsyn Smith and Matthew Deeprose
https://matthewdeeprose.github.io/udlhe.html 6
Above examples have sufficient contrast
Visual impairments
09/11/2021
Tamsyn Smith and Matthew Deeprose
https://matthewdeeprose.github.io/udlhe.html
7
300 million people have color blindness.*
Many more report having difficulties with
their sight.**
The ability to see color decreases as we
age.***
* https://abilitynet.org.uk/blog/visual-impairment-and-computing-
common-questions
** http://www.colorblindawareness.org/color-blindness/
*** https://en.wikipedia.org/wiki/Color_blindness
Diagram from:
https://24ways.org/2012/color-accessibility/
Situational visual impairments
Using a mobile in
outdoors
Steve Mason/Photodisc/Getty Images
A projector screen in a
well-lit room
pxfuel.com - Creative Commons Zero -
CC0
Screen glare
Luke Domy / CC BY-NC-ND 2.0
Working in a poorly lit
room.
Getty Images
09/11/2021
Tamsyn Smith and Matthew Deeprose
https://matthewdeeprose.github.io/udlhe.html 8
Screen glare on the examples we showed earlier
Photo of earlier examples
on a laptop screen with
lots of glare.
Using sufficient contrast
will enhance the
accessibility of your color
choices.
09/11/2021
Tamsyn Smith and Matthew Deeprose
https://matthewdeeprose.github.io/udlhe.html 9
A basic tip for ensuring good contrast
Light text on a dark background is easy to read
Dark text on a light background is easy to read
09/11/2021 10
Tamsyn Smith and Matthew Deeprose
https://matthewdeeprose.github.io/udlhe.html
Contrasts that may be hard to read
Hard to read Hard to read Hard to read
Hard to read? Hard to read? Hard to read?
Easy to read Easy to read Easy to read
Light text on a dark background is easy to read
Dark text on a light background is easy to read
09/11/2021
Tamsyn Smith and Matthew Deeprose
https://matthewdeeprose.github.io/udlhe.html 11
Checking the contrast of two colors
The Web Content Accessibility Guidelines provide a
method for us to ensure that when we use color we can
do so in a way that is accessible.
09/11/2021
Tamsyn Smith and Matthew Deeprose
https://matthewdeeprose.github.io/udlhe.html 12
How is color contrast calculated?
1. Determine the relative luminance
of the background and
foreground color.
2. Compare the relative luminance
of the background and
foreground color.
https://planetcalc.com/7779/
https://www.24a11y.com/2019/color-theory-and-contrast-ratios/
In WCAG 3 the method to assess contrast is changed to the “Advanced
Perceptual Contrast Algorithm”
09/11/2021 13
Tamsyn Smith and Matthew Deeprose
https://matthewdeeprose.github.io/udlhe.html
Use an online checker
whocanuse.com
Created by Corey Ginnivan
@coreyginnivan
09/11/2021 14
Tamsyn Smith and Matthew Deeprose
https://matthewdeeprose.github.io/udlhe.html
WCAG sufficient and insufficient contrast
09/11/2021 15
Tamsyn Smith and Matthew Deeprose
https://matthewdeeprose.github.io/udlhe.html
3:1
4.5:1
7:1
The ratios to remember
Minimum for
Graphical
Objects / UI
1.4.11 Non-text Contrast (Level AA)
Minimum for
Text
1.4.3 Contrast (Minimum) (Level AA)
AA
Enhanced level
for Text
AAA
1.4.6 Contrast (Enhanced) (Level AAA):
09/11/2021 16
(not to scale)
Tamsyn Smith and Matthew Deeprose
https://matthewdeeprose.github.io/udlhe.html
Revisiting hard to read contrast
examples
Hard to read
1.64:1
Hard to read
1.84:1
Hard to read
1.19:1
Hard to read? 2.71:1 Hard to read? 4:1 Hard to read? 2.96:1
Easy to read 21:1 Easy to read 15.27:1 Easy to read
7.58:1
Light text on a dark background is easy to read
Dark text on a light background is easy to read
09/11/2021 17
Tamsyn Smith and Matthew Deeprose
https://matthewdeeprose.github.io/udlhe.html
Using a brand…?
09/11/2021 18
Tamsyn Smith and Matthew Deeprose
https://matthewdeeprose.github.io/udlhe.html
Bring an intuitive
feel.
Reduce cognitive
load.
Exhibit
professionalism.
Create harmony.
A benefit of using your brand is visual consistency 1
09/11/2021
Tamsyn Smith and Matthew Deeprose
https://matthewdeeprose.github.io/udlhe.html 19
“5 Methods to Achieve Visual Consistency in eLearning”, Karla Gutierrez
https://www.shiftelearning.com/blog/visual-consistency-in-elearning
University of Southampton “Common Framework
for Online Education”
09/11/2021 20
Structure
Engagement
Peer to peer
interaction
Connecting
the campus
Accessible
and Inclusive
content
Assessment
and
feedback
Organisation
Belonging
to UoS
Connecting the campus
Students who have a clear sense of belonging and
identify with their programme and their university are
more likely to succeed. This will be important for all
students, and particularly those joining for the first
time into the online environment.
Finding ways to incorporate and profile University of
Southampton research and community activities will
enhance this sense of connection and belonging.
Tamsyn Smith and Matthew Deeprose
https://matthewdeeprose.github.io/udlhe.html
“How can we make it
simpler for colleagues to
identify accessible color
combinations within our
institutional brand?”
09/11/2021 21
Tamsyn Smith and Matthew Deeprose
https://matthewdeeprose.github.io/udlhe.html
Brand color accessibility matrix 1
Lookup table to ease the process of checking which color combinations are accessible.
https://is.gd/PDFmatrix
09/11/2021 22
Tamsyn Smith and Matthew Deeprose
https://matthewdeeprose.github.io/udlhe.html
Brand color accessibility matrix 2
• All brand colors are shown.
• Where two colors intersect, their
accessibility rating is shown.
• Iterated upon based on feedback
from colleagues.
• Began as a PDF, newly recreated
as an interactive web page.
09/11/2021 23
Tamsyn Smith and Matthew Deeprose
https://matthewdeeprose.github.io/udlhe.html
Web-based version
https://is.gd/colormatrix
09/11/2021 24
Tamsyn Smith and Matthew Deeprose
https://matthewdeeprose.github.io/udlhe.html
Explanations, with data
09/11/2021 25
Tamsyn Smith and Matthew Deeprose
https://matthewdeeprose.github.io/udlhe.html
This data has proven useful for starting
conversations about our brand:
“Did you know that we can only use 19% of the
color combinations in our brand for text?”
More details available below the matrix
09/11/2021 26
Tamsyn Smith and Matthew Deeprose
https://matthewdeeprose.github.io/udlhe.html
Exploring your brand
Filter to show AA and AAA only
and identify the column with the
greatest amount.
09/11/2021 27
Tamsyn Smith and Matthew Deeprose
https://matthewdeeprose.github.io/udlhe.html
Colors that can be used with white
Plain Black
#231F20
Rich Black
#00131D
Neutral 1
#495961
Neutral 2
#758D9A
Prussian
#002E3B
Marine 1
#005C84
Shamrock
#1E8765
Horizon 3
#E73037
Coral
#E73238
Horizon 4
#D5007F
Horizon 5
#8D3970
AAA AAA AAA G AAA AAA G G G AA AAA
7 colors can be used for text
Colors that can be used with “Rich Black”
11 colors can be used for text
09/11/2021 28
Tamsyn Smith and Matthew Deeprose
https://matthewdeeprose.github.io/udlhe.html
Appalachian State University
https://is.gd/AppalachianMatrix
09/11/2021 29
Tamsyn Smith and Matthew Deeprose
https://matthewdeeprose.github.io/udlhe.html
York University
09/11/2021 30
Tamsyn Smith and Matthew Deeprose
https://matthewdeeprose.github.io/udlhe.html
https://is.gd/YorkMatrix
Want a matrix for your color palette?
Let us know:
 The HTML color codes of your brand.
 Remember to include white.
 If you have ‘names’ for your colors
include them, use comma separation.
 Email them to Matt:
md4@soton.ac.uk
You’ll get the matrix files and data
sent back within a week or so.
Example:
#FFFFFF, white
#FAFF7F, medicine yellow
#FF5154, art pink
#91A6FF, science blue
09/11/2021 31
Tamsyn Smith and Matthew Deeprose
https://matthewdeeprose.github.io/udlhe.html
Conclusion
• Explained why accessible use of color is vital and the
guidelines we should follow.
• Shared our simple approach to check that colors are
both accessible and within an institution's agreed
color palette.
• Invited you to benefit from this approach.
09/11/2021 32
Tamsyn Smith and Matthew Deeprose
https://matthewdeeprose.github.io/udlhe.html
Thank you!
Any questions?
All resources and links are available at:
https://matthewdeeprose.github.io/udlh
e.html
Tamsyn Smith
tms2g12@soton.ac.uk
Matthew Deeprose
md4@soton.ac.uk
09/11/2021 33
Tamsyn Smith and Matthew Deeprose
https://matthewdeeprose.github.io/udlhe.html
How to ensure accessible use of color in learning resources and materials aligned to your institution’s brand

More Related Content

How to ensure accessible use of color in learning resources and materials aligned to your institution’s brand

  • 1. How to ensure accessible use of color in learning resources and materials aligned to your institution’s brand Tamsyn Smith & Matthew Deeprose, University of Southampton 09/11/2021 Tamsyn Smith and Matthew Deeprose https://matthewdeeprose.github.io/udlhe.html 1
  • 2. Agenda • Why accessible use of color is vital and the guidelines we should follow. • Sharing our simple approach to check that colors are both accessible and aligned to an institution's color palette. • Invite you to benefit from this approach. 09/11/2021 2 Tamsyn Smith and Matthew Deeprose https://matthewdeeprose.github.io/udlhe.html
  • 3. Ensuring equitable access to our learning environment has never been more important. 09/11/2021 Tamsyn Smith and Matthew Deeprose https://matthewdeeprose.github.io/udlhe.html 3
  • 4. Color Contrast • 86% of web pages have low contrast text.* • 44% of files uploaded to the Learning Management System have at least one contrast issue. ** “I tend to skip over text that has low contrast because it’s too much of a strain to read it.” *** * WebAim ** Blackboard *** Joe Banks, Tech Lead at 23andMe 09/11/2021 4 Tamsyn Smith and Matthew Deeprose https://matthewdeeprose.github.io/udlhe.html
  • 5. Examples of poor contrast 09/11/2021 5 Tamsyn Smith and Matthew Deeprose https://matthewdeeprose.github.io/udlhe.html Above examples have insufficient contrast
  • 6. Black text on light backgrounds Your Feedback Assignment deadline Semester 2 timetable Exam information 09/11/2021 Tamsyn Smith and Matthew Deeprose https://matthewdeeprose.github.io/udlhe.html 6 Above examples have sufficient contrast
  • 7. Visual impairments 09/11/2021 Tamsyn Smith and Matthew Deeprose https://matthewdeeprose.github.io/udlhe.html 7 300 million people have color blindness.* Many more report having difficulties with their sight.** The ability to see color decreases as we age.*** * https://abilitynet.org.uk/blog/visual-impairment-and-computing- common-questions ** http://www.colorblindawareness.org/color-blindness/ *** https://en.wikipedia.org/wiki/Color_blindness Diagram from: https://24ways.org/2012/color-accessibility/
  • 8. Situational visual impairments Using a mobile in outdoors Steve Mason/Photodisc/Getty Images A projector screen in a well-lit room pxfuel.com - Creative Commons Zero - CC0 Screen glare Luke Domy / CC BY-NC-ND 2.0 Working in a poorly lit room. Getty Images 09/11/2021 Tamsyn Smith and Matthew Deeprose https://matthewdeeprose.github.io/udlhe.html 8
  • 9. Screen glare on the examples we showed earlier Photo of earlier examples on a laptop screen with lots of glare. Using sufficient contrast will enhance the accessibility of your color choices. 09/11/2021 Tamsyn Smith and Matthew Deeprose https://matthewdeeprose.github.io/udlhe.html 9
  • 10. A basic tip for ensuring good contrast Light text on a dark background is easy to read Dark text on a light background is easy to read 09/11/2021 10 Tamsyn Smith and Matthew Deeprose https://matthewdeeprose.github.io/udlhe.html
  • 11. Contrasts that may be hard to read Hard to read Hard to read Hard to read Hard to read? Hard to read? Hard to read? Easy to read Easy to read Easy to read Light text on a dark background is easy to read Dark text on a light background is easy to read 09/11/2021 Tamsyn Smith and Matthew Deeprose https://matthewdeeprose.github.io/udlhe.html 11
  • 12. Checking the contrast of two colors The Web Content Accessibility Guidelines provide a method for us to ensure that when we use color we can do so in a way that is accessible. 09/11/2021 Tamsyn Smith and Matthew Deeprose https://matthewdeeprose.github.io/udlhe.html 12
  • 13. How is color contrast calculated? 1. Determine the relative luminance of the background and foreground color. 2. Compare the relative luminance of the background and foreground color. https://planetcalc.com/7779/ https://www.24a11y.com/2019/color-theory-and-contrast-ratios/ In WCAG 3 the method to assess contrast is changed to the “Advanced Perceptual Contrast Algorithm” 09/11/2021 13 Tamsyn Smith and Matthew Deeprose https://matthewdeeprose.github.io/udlhe.html
  • 14. Use an online checker whocanuse.com Created by Corey Ginnivan @coreyginnivan 09/11/2021 14 Tamsyn Smith and Matthew Deeprose https://matthewdeeprose.github.io/udlhe.html
  • 15. WCAG sufficient and insufficient contrast 09/11/2021 15 Tamsyn Smith and Matthew Deeprose https://matthewdeeprose.github.io/udlhe.html
  • 16. 3:1 4.5:1 7:1 The ratios to remember Minimum for Graphical Objects / UI 1.4.11 Non-text Contrast (Level AA) Minimum for Text 1.4.3 Contrast (Minimum) (Level AA) AA Enhanced level for Text AAA 1.4.6 Contrast (Enhanced) (Level AAA): 09/11/2021 16 (not to scale) Tamsyn Smith and Matthew Deeprose https://matthewdeeprose.github.io/udlhe.html
  • 17. Revisiting hard to read contrast examples Hard to read 1.64:1 Hard to read 1.84:1 Hard to read 1.19:1 Hard to read? 2.71:1 Hard to read? 4:1 Hard to read? 2.96:1 Easy to read 21:1 Easy to read 15.27:1 Easy to read 7.58:1 Light text on a dark background is easy to read Dark text on a light background is easy to read 09/11/2021 17 Tamsyn Smith and Matthew Deeprose https://matthewdeeprose.github.io/udlhe.html
  • 18. Using a brand…? 09/11/2021 18 Tamsyn Smith and Matthew Deeprose https://matthewdeeprose.github.io/udlhe.html
  • 19. Bring an intuitive feel. Reduce cognitive load. Exhibit professionalism. Create harmony. A benefit of using your brand is visual consistency 1 09/11/2021 Tamsyn Smith and Matthew Deeprose https://matthewdeeprose.github.io/udlhe.html 19 “5 Methods to Achieve Visual Consistency in eLearning”, Karla Gutierrez https://www.shiftelearning.com/blog/visual-consistency-in-elearning
  • 20. University of Southampton “Common Framework for Online Education” 09/11/2021 20 Structure Engagement Peer to peer interaction Connecting the campus Accessible and Inclusive content Assessment and feedback Organisation Belonging to UoS Connecting the campus Students who have a clear sense of belonging and identify with their programme and their university are more likely to succeed. This will be important for all students, and particularly those joining for the first time into the online environment. Finding ways to incorporate and profile University of Southampton research and community activities will enhance this sense of connection and belonging. Tamsyn Smith and Matthew Deeprose https://matthewdeeprose.github.io/udlhe.html
  • 21. “How can we make it simpler for colleagues to identify accessible color combinations within our institutional brand?” 09/11/2021 21 Tamsyn Smith and Matthew Deeprose https://matthewdeeprose.github.io/udlhe.html
  • 22. Brand color accessibility matrix 1 Lookup table to ease the process of checking which color combinations are accessible. https://is.gd/PDFmatrix 09/11/2021 22 Tamsyn Smith and Matthew Deeprose https://matthewdeeprose.github.io/udlhe.html
  • 23. Brand color accessibility matrix 2 • All brand colors are shown. • Where two colors intersect, their accessibility rating is shown. • Iterated upon based on feedback from colleagues. • Began as a PDF, newly recreated as an interactive web page. 09/11/2021 23 Tamsyn Smith and Matthew Deeprose https://matthewdeeprose.github.io/udlhe.html
  • 24. Web-based version https://is.gd/colormatrix 09/11/2021 24 Tamsyn Smith and Matthew Deeprose https://matthewdeeprose.github.io/udlhe.html
  • 25. Explanations, with data 09/11/2021 25 Tamsyn Smith and Matthew Deeprose https://matthewdeeprose.github.io/udlhe.html This data has proven useful for starting conversations about our brand: “Did you know that we can only use 19% of the color combinations in our brand for text?”
  • 26. More details available below the matrix 09/11/2021 26 Tamsyn Smith and Matthew Deeprose https://matthewdeeprose.github.io/udlhe.html
  • 27. Exploring your brand Filter to show AA and AAA only and identify the column with the greatest amount. 09/11/2021 27 Tamsyn Smith and Matthew Deeprose https://matthewdeeprose.github.io/udlhe.html
  • 28. Colors that can be used with white Plain Black #231F20 Rich Black #00131D Neutral 1 #495961 Neutral 2 #758D9A Prussian #002E3B Marine 1 #005C84 Shamrock #1E8765 Horizon 3 #E73037 Coral #E73238 Horizon 4 #D5007F Horizon 5 #8D3970 AAA AAA AAA G AAA AAA G G G AA AAA 7 colors can be used for text Colors that can be used with “Rich Black” 11 colors can be used for text 09/11/2021 28 Tamsyn Smith and Matthew Deeprose https://matthewdeeprose.github.io/udlhe.html
  • 29. Appalachian State University https://is.gd/AppalachianMatrix 09/11/2021 29 Tamsyn Smith and Matthew Deeprose https://matthewdeeprose.github.io/udlhe.html
  • 30. York University 09/11/2021 30 Tamsyn Smith and Matthew Deeprose https://matthewdeeprose.github.io/udlhe.html https://is.gd/YorkMatrix
  • 31. Want a matrix for your color palette? Let us know:  The HTML color codes of your brand.  Remember to include white.  If you have ‘names’ for your colors include them, use comma separation.  Email them to Matt: md4@soton.ac.uk You’ll get the matrix files and data sent back within a week or so. Example: #FFFFFF, white #FAFF7F, medicine yellow #FF5154, art pink #91A6FF, science blue 09/11/2021 31 Tamsyn Smith and Matthew Deeprose https://matthewdeeprose.github.io/udlhe.html
  • 32. Conclusion • Explained why accessible use of color is vital and the guidelines we should follow. • Shared our simple approach to check that colors are both accessible and within an institution's agreed color palette. • Invited you to benefit from this approach. 09/11/2021 32 Tamsyn Smith and Matthew Deeprose https://matthewdeeprose.github.io/udlhe.html
  • 33. Thank you! Any questions? All resources and links are available at: https://matthewdeeprose.github.io/udlh e.html Tamsyn Smith tms2g12@soton.ac.uk Matthew Deeprose md4@soton.ac.uk 09/11/2021 33 Tamsyn Smith and Matthew Deeprose https://matthewdeeprose.github.io/udlhe.html

Editor's Notes

  1. Tamsyn Introduce who we are and brief mention of our roles and interest in accessibility and UDL.
  2. ղ
  3. Tamsyn Examples taken from: - https://www.essentialaccessibility.com/blog/covid-19-highlights-the-importance-of-digital-accessibility-and-inclusion/ - https://knowbility.org/blog/2020/accessibility-in-your-covid-response/ - https://modelviewculture.com/pieces/in-the-middle-of-a-pandemic-covid-19-information-remains-inaccessible-to-visually-impaired-people
  4. Matt
  5. Matt
  6. Matt
  7. Matt
  8. Tamsyn
  9. Tamsyn
  10. Tamsyn
  11. Tamsyn
  12. Tamsyn
  13. Matt
  14. Matt
  15. Matt
  16. Matt https://www.w3.org/TR/WCAG21/#non-text-contrast https://www.w3.org/TR/WCAG21/#contrast-minimum https://www.w3.org/TR/WCAG21/#contrast-enhanced
  17. Matt
  18. Tamsyn https://www.kent.ac.uk/brand/downloads/brand-guidelines.pdf  https://www.ucl.ac.uk/cam/brand/guidelines/color  https://www.stir.ac.uk/brand-bank/visual-assets/color-palette/  https://www.gla.ac.uk/myglasgow/staff/brandtoolkit/brandelements/colors/  https://www.staffnet.manchester.ac.uk/brand/visual-identity/color/ 
  19. Tamsyn
  20. Tamsyn
  21. Tamsyn
  22. Matt
  23. Matt
  24. Matt
  25. Matt
  26. Matt
  27. Matt
  28. Matt
  29. Tamsyn
  30. Tamsyn
  31. Tamsyn
  32. Tamsyn
  33. Tamsyn
  34. POUR – perceivable, operable understandable and reliable The area we're talking about is perceivable
  35. Tamsyn