Tag: color

Color curves: Choose a color palette with gradient

Jan-Willem Tulp pointed out this amazing tool to choose a color palette: https://colorcurves.app

You can choose between either a continuous palette or a discrete palette, with groups that is.

Here’s an example of an exponential color curve for a continuous palette using colorcurves.app:

There are numerous functions you can use to make your “gradient color curve“.

Similarly, you can specify the lightness of the different colors along your curve.

Here’s another example, of an color arc for a categorical / discrete palette using colorcurves.app:

All buildings in the Netherlands, color coded by year of construction

Could you guess that you are looking at Amsterdam?

Maybe you spotted the canals?

Bert Spaan colorcoded every building in the Netherlands according to their yaer of construction and visualized the resulting map of nearly 10 million buildings in a JavaScript leaflet webpage.

It resulted in this wonderful map, which my screenshots don’t do any honor. So have a look yourself!

https://github.com/waagsociety/buildings/tree/gh-pages/high-res

paletteer: Hundreds of color palettes in R

Looking for just the right colors for your data visualization?

I often cover tools to pick color palettes on my website (e.g. here, here, or here) and also host a comprehensive list of color packages in my R programming resources overview.

However, paletteer is by far my favorite package for customizing your colors in R!

The paletteer package offers direct access to 1759 color palettes, from 50 different packages!

After installing and loading the package, paletteer works as easy as just adding one additional line of code to your ggplot:

install.packages("paletteer")
library(paletteer)

install.packages("ggplot2")
library(ggplot2)

ggplot(iris, aes(Sepal.Length, Sepal.Width, color = Species)) +
  geom_point() +
  scale_color_paletteer_d("nord::aurora")

paletteer offers a combined collection of hundreds of other color palettes offered in the R programming environment, so you are sure you will find a palette that you like! Here’s the list copied below, but this github repo provides more detailed information about the package contents.

Name	Github	CRAN
awtools	awhstin/awtools – 0.2.1	–
basetheme	KKPMW/basetheme – 0.1.2	0.1.2
calecopal	an-bui/calecopal – 0.1.0	–
cartography	riatelab/cartography – 2.2.1.1	2.2.1
colorblindr	clauswilke/colorblindr – 0.1.0	–
colRoz	jacintak/colRoz – 0.2.2	–
dichromat	–	2.0-0
DresdenColor	katiesaund/DresdenColor – 0.0.0.9000	–
dutchmasters	EdwinTh/dutchmasters – 0.1.0	–
fishualize	nschiett/fishualize – 0.2.999	0.1.0
gameofthrones	aljrico/gameofthrones – 1.0.1	1.0.0
ggpomological	gadenbuie/ggpomological – 0.1.2	–
ggsci	road2stat/ggsci – 2.9	2.9
ggthemes	jrnold/ggthemes – 4.2.0	4.2.0
ggthemr	cttobin/ggthemr – 1.1.0	–
ghibli	ewenme/ghibli – 0.3.0.9000	0.3.0
grDevices	–	2.0-14
harrypotter	aljrico/harrypotter – 2.1.0	2.1.0
IslamicArt	lambdamoses/IslamicArt – 0.1.0	–
jcolors	jaredhuling/jcolors – 0.0.4	0.0.4
LaCroixColoR	johannesbjork/LaCroixColoR – 0.1.0	–
lisa	tyluRp/lisa – 0.1.1.9000	0.1.1
MapPalettes	disarm-platform/MapPalettes – 0.0.2	–
miscpalettes	EmilHvitfeldt/miscpalettes – 0.0.0.9000	–
nationalparkcolors	katiejolly/nationalparkcolors – 0.1.0	–
NineteenEightyR	m-clark/NineteenEightyR – 0.1.0	–
nord	jkaupp/nord – 1.0.0	1.0.0
ochRe	ropenscilabs/ochRe – 1.0.0	–
oompaBase	–	3.2.9
palettesForR	frareb/palettesForR – 0.1.2	0.1.2
palettetown	timcdlucas/palettetown – 0.1.1.90000	0.1.1
palr	AustralianAntarcticDivision/palr – 0.1.0	0.1.0
pals	kwstat/pals – 1.6	1.6
PNWColors	jakelawlor/PNWColors – 0.1.0	–
Polychrome	–	1.2.3
rcartocolor	Nowosad/rcartocolor – 2.0.0	2.0.0
RColorBrewer	–	1.1-2
Redmonder	–	0.2.0
RSkittleBrewer	alyssafrazee/RSkittleBrewer – 1.1	–
scico	thomasp85/scico – 1.1.0	1.1.0
tidyquant	business-science/tidyquant – 0.5.8	0.5.8
trekcolors	leonawicz/trekcolors – 0.1.2	0.1.1
tvthemes	Ryo-N7/tvthemes – 1.1.0	1.1.0
unikn	hneth/unikn – 0.2.0.9003	0.2.0
vapeplot	seasmith/vapeplot – 0.1.0	–
vapoRwave	moldach/vapoRwave – 0.0.0.9000	–
viridis	sjmgarnier/viridis – 0.5.1	0.5.1
visibly	m-clark/visibly – 0.2.6	–
werpals	sciencificity/werpals – 0.1.0	–
wesanderson	karthik/wesanderson – 0.3.6.9000	0.3.6
yarrr	ndphillips/yarrr – 0.1.6	0.1.5

Via the paletteer github page

Let me know what you like about the package and do share any beautiful data visualizations you create with it!

Overview of built-in colors in R

Most of my data visualizations I create using R programming — as you might have noticed from the content of my website.

Though I am colorblind myself, I love to work with colors and color palettes in my visualizations. And I’ve come across quite some neat tricks in my time.

For instance, did you it’s super easy to create a reproducible though custom color palette? Or that there’s a quick reference card for ggplot2’s built-in colors? Or, and this is this blog post’s main subject, that you can access all built-in base colors using colors()!

This last trick, I learned in this recent blog post I came across, by Chisato. She explored all colors() base R incorporates, using the new ggforce and ggraph packages (thank you Thomas Lin Petersen!). Her exploration resulted in some nice visual overviews, which you can view in more detail in the original blog here.

Colors() that have at least 5 colors in their family

Daily Art by Saskia Freeke

Saskia Freeke (twitter) is a Dutch artist, creative coder, interaction designer, visual designer, and educator working from Amsterdam. She has been creating an awesome digital art piece for every day since January 1st 2015. Her ever-growing collection includes some animated, visual masterpieces.

Year 4 of making daily art!
Wouldnât ever thought that this would go on so long!
Thank you all for your support, kind messages and likes!
Letâs see what 2019 will bring! — Via http://sasj.tumblr.com/post/181589324890/year-4-of-making-daily-art-wouldnt-ever-thought

My personal favorites are Saskia’s moving works, her GIFs:

Geometric Animations / 190209 — Via http://sasj.tumblr.com/

Geometric Animations / 180626 — Via http://sasj.tumblr.com/

Geometric Animations / 180115 — Via http://sasj.tumblr.com/

Saskia uses Processing to create her art. Processing is a Java-based language, also used often by Daniel Shiffmann whom we know from the Coding Train.

Data Visualization Tools & Resources

There’s this amazing overview of helpful dataviz resources atwww.visualisingdata.com/resources!

Browse through hundreds of helpful data visualization tools, programs, and services. All neatly organized by Andy Kirk in categories: data handling, applications, programming, web-based, qualitative, mapping, specialist, and colour. What a great repository!