ColorBrewer
{{Short description|Online color tool for cartography}}
File:ColorBrewer-screenshot.png
ColorBrewer is an online tool for selecting map color schemes based on palettes created by Cynthia Brewer.{{cite magazine |last1=Miller |first1=Greg |title=The Cartographer Who's Transforming Map Design |url=https://www.wired.com/2014/10/cindy-brewer-map-design/ |magazine=Wired |access-date=31 January 2024}} It was launched in 2002 by Brewer, Mark Harrower, and The Pennsylvania State University. Suggested color schemes are based on data type (sequential, diverging, or qualitative). It also provides options for varied display environments, such as laptop, photocopy, and LCD projector, and colorblind safe options.{{cite journal |last1=Olson |first1=Judy M. |last2=Brewer |first2=Cynthia A. |title=An Evaluation of Color Selections to Accommodate Map Users with Color-Vision Impairments |journal=Annals of the Association of American Geographers |date=March 1997 |volume=87 |issue=1 |pages=103–134 |doi=10.1111/0004-5608.00043}}
ColorBrewer is licensed using Apache 2.0 software license, which is similar to CC-BY-SA 3.0.{{citation|title=ColorBrewer.org: An Online Tool for Selecting Colour Schemes for Maps|last1=Harrower|first1=Mark|last2=Brewer|first2=Cynthia A.|journal=The Cartographic Journal |volume=40 |issue=1 |pages=27–37 |year=2003 |url=http://www.albany.edu/faculty/fboscoe/papers/harrower2003.pdf|doi=10.1179/000870403235002042|bibcode=2003CartJ..40...27H |s2cid=140173239|access-date=2013-01-03|archive-url=https://web.archive.org/web/20130510171310/http://www.albany.edu/faculty/fboscoe/papers/harrower2003.pdf|archive-date=2013-05-10|url-status=dead}}
Brewer palettes
Valid names and a full color representation for each palette are shown below. If this is viewed in a compliant browser, moving the mouse cursor over each box will pop up the corresponding color number as a tooltip.
{{center|Sequential (1-9)}}
{{colbegin|colwidth=20em}}
- YlGn
{{BrewerColors|YlGn|9}} - YlGnBu
{{BrewerColors|YlGnBu|9}} - GnBu
{{BrewerColors|GnBu|9}} - BuGn
{{BrewerColors|BuGn|9}} - PuBuGn
{{BrewerColors|PuBuGn|9}} - PuBu
{{BrewerColors|PuBu|9}} - BuPu
{{BrewerColors|BuPu|9}} - RdPu
{{BrewerColors|RdPu|9}} - PuRd
{{BrewerColors|PuRd|9}} - OrRd
{{BrewerColors|OrRd|9}} - YlOrRd
{{BrewerColors|YlOrRd|9}} - YlOrBr
{{BrewerColors|YlOrBr|9}} - Purples
{{BrewerColors|Purples|9}} - Blues
{{BrewerColors|Blues|9}} - Greens
{{BrewerColors|Greens|9}} - Oranges
{{BrewerColors|Oranges|9}} - Reds
{{BrewerColors|Reds|9}} - Greys
{{BrewerColors|Greys|9}}
{{colend}}
{{center|Divergent (1-11)}}
{{colbegin|colwidth=20em}}
- PuOr
{{BrewerColors|PuOr|11}} - BrBG
{{BrewerColors|BrBG|11}} - PRGn
{{BrewerColors|PRGn|11}} - PiYG
{{BrewerColors|PiYG|11}} - RdBu
{{BrewerColors|RdBu|11}} - RdGy
{{BrewerColors|RdGy|11}} - RdYlBu
{{BrewerColors|RdYlBu|11}} - Spectral
{{BrewerColors|Spectral|11}} - RdYlGn
{{BrewerColors|RdYlGn|11}}
{{colend}}
{{center|Qualitative (1-8/12)}}
{{colbegin|colwidth=20em}}
- Accent
{{BrewerColors|Accent|8}} - Dark2
{{BrewerColors|Dark2|8}} - Paired
{{BrewerColors|Paired|12}} - Pastel1
{{BrewerColors|Pastel1|9}} - Pastel2
{{BrewerColors|Pastel2|8}} - Set1
{{BrewerColors|Set1|9}} - Set2
{{BrewerColors|Set2|8}} - Set3
{{BrewerColors|Set3|12}}
{{colend}}
Applications
{{ multiple image |total_width=450
| image1= 20180522 Color palette for warming stripes - ColorBrewer 9-class single hue.svg |caption1= Palette chosen by climatologist Ed Hawkins in his warming stripes graphics for portraying global warming
| image2=20191206 Warming stripes at COP25 - John Englart flickr - composite.jpg |caption2= Example of a display with warming stripes, at a climate conference
}}
In 2018, climate scientist Ed Hawkins chose the eight most saturated blues and reds from the ColorBrewer 9-class single-hue palettes in his design of warming stripes graphics, which visually summarize global warming as an ordered sequence of stripes.{{cite web |last1=Bugden |first1=Erica |title=Do you really understand the influential warming stripes? |url=https://www.chezvoila.com/blog/warmingstripes |website=Voilà Information Design |archive-url=https://web.archive.org/web/20191205172628/https://www.chezvoila.com/blog/warmingstripes |archive-date=5 December 2019 |date=3 December 2019 |url-status=live }}
See also
References
{{reflist}}
External links
- [https://colorbrewer2.org/ Official website]