{"id":8205,"date":"2018-11-18T17:30:15","date_gmt":"2018-11-18T15:30:15","guid":{"rendered":"https:\/\/www.datanovia.com\/en\/?p=8205"},"modified":"2019-12-25T11:15:46","modified_gmt":"2019-12-25T09:15:46","slug":"r-colors-amazing-resources-you-want-to-know","status":"publish","type":"post","link":"https:\/\/www.datanovia.com\/en\/blog\/r-colors-amazing-resources-you-want-to-know\/","title":{"rendered":"R Colors: Amazing Resources You Want to Know"},"content":{"rendered":"<div id=\"rdoc\">\n<p>This article provides amazing list of <strong>R colors<\/strong> that you can use to create beautiful graphics. Colors can be specified either by names or by hexadecimal color codes. There are also some predefined colors in R that you can use; these include RColorBrewer, viridis and ggsci color palettes. Read more at: <a href=\"https:\/\/www.datanovia.com\/en\/blog\/top-r-color-palettes-to-know-for-great-data-visualization\/\">Top R Color Palettes to Know for Great Data Visualization<\/a><\/p>\n<p>In this tutorial, you will learn the different available colors, as well as, how to use them in ggplot2 and in R base plots.<\/p>\n<p>Contents:<\/p>\n<div id=\"TOC\">\n<ul>\n<li><a href=\"#load-required-packages\">Load required packages<\/a><\/li>\n<li><a href=\"#r-color-names\">R color names<\/a><\/li>\n<li><a href=\"#hexadecimal-colors\">Hexadecimal colors<\/a><\/li>\n<li><a href=\"#predefined-r-color-palettes\">Predefined R color palettes<\/a>\n<ul>\n<li><a href=\"#rcolorbrewer-palettes\">RColorBrewer palettes<\/a><\/li>\n<li><a href=\"#viridis-color-palettes\">Viridis color palettes<\/a><\/li>\n<li><a href=\"#scientific-journal-color-palettes\">Scientific journal color palettes<\/a><\/li>\n<li><a href=\"#wes-anderson-color-palettes\">Wes Anderson color palettes<\/a><\/li>\n<li><a href=\"#r-base-color-palettes\">R base color palettes<\/a><\/li>\n<\/ul>\n<\/li>\n<li><a href=\"#conclusion\">Conclusion<\/a><\/li>\n<\/ul>\n<\/div>\n<div id=\"load-required-packages\" class=\"section level2\">\n<h2>Load required packages<\/h2>\n<p>Load ggplot2 and set default plot theme:<\/p>\n<pre class=\"r\"><code>library(ggplot2)\r\ntheme_set(theme_bw())<\/code><\/pre>\n<\/div>\n<div id=\"r-color-names\" class=\"section level2\">\n<h2>R color names<\/h2>\n<p>There are a <a href=\"https:\/\/www.datanovia.com\/en\/blog\/awesome-list-of-657-r-color-names\/\">list of 657 color names that R knows<\/a> about.<\/p>\n<p>A sample of these R color names are illustrated in the image below:<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.datanovia.com\/en\/wp-content\/uploads\/dn-tutorials\/ggplot2\/images\/0100-r-color-names-plot-1.png\" alt=\"R color names\" \/><\/p>\n<ul>\n<li>Usage in base plot:<\/li>\n<\/ul>\n<pre class=\"r\"><code>barplot(c(2, 5), col = c(\"darkcyan\", \"darkgoldenrod1\"))<\/code><\/pre>\n<p><img decoding=\"async\" src=\"https:\/\/www.datanovia.com\/en\/wp-content\/uploads\/dn-tutorials\/ggplot2\/figures\/031-r-colors-r-plot-color-names-1.png\" width=\"192\" \/><\/p>\n<ul>\n<li>Usage in ggplots:<\/li>\n<\/ul>\n<pre class=\"r\"><code>ggplot(iris, aes(Species, Sepal.Length)) +\r\n  geom_boxplot(fill = \"darkcyan\") <\/code><\/pre>\n<p><img decoding=\"async\" src=\"https:\/\/www.datanovia.com\/en\/wp-content\/uploads\/dn-tutorials\/ggplot2\/figures\/031-r-colors-ggplot-color-names-1.png\" width=\"288\" \/><\/p>\n<\/div>\n<div id=\"hexadecimal-colors\" class=\"section level2\">\n<h2>Hexadecimal colors<\/h2>\n<p>The following image shows example of hexadecimal color codes that you can choose:<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.datanovia.com\/en\/wp-content\/uploads\/dn-tutorials\/ggplot2\/images\/hextable-hexadecimal-color-chart.png\" alt=\"Hexadecimal color chart\" \/><\/p>\n<p>(Source: <a class=\"uri\" href=\"http:\/\/www.visibone.com\">http:\/\/www.visibone.com<\/a>)<\/p>\n<ul>\n<li>Usage in base plot:<\/li>\n<\/ul>\n<pre class=\"r\"><code>barplot(c(2, 5), col = c(\"#009999\", \"#0000FF\"))<\/code><\/pre>\n<p><img decoding=\"async\" src=\"https:\/\/www.datanovia.com\/en\/wp-content\/uploads\/dn-tutorials\/ggplot2\/figures\/031-r-colors-r-plot-hexadecimal-colors-1.png\" width=\"192\" \/><\/p>\n<ul>\n<li>Usage in ggplots:<\/li>\n<\/ul>\n<pre class=\"r\"><code>ggplot(iris, aes(Species, Sepal.Length)) +\r\n  geom_boxplot(aes(fill = Species)) +\r\n  scale_fill_manual(values = c(\"#00AFBB\", \"#E7B800\", \"#FC4E07\"))<\/code><\/pre>\n<p><img decoding=\"async\" src=\"https:\/\/www.datanovia.com\/en\/wp-content\/uploads\/dn-tutorials\/ggplot2\/figures\/031-r-colors-ggplot-hexadecimal-colors-1.png\" width=\"384\" \/><\/p>\n<\/div>\n<div id=\"predefined-r-color-palettes\" class=\"section level2\">\n<h2>Predefined R color palettes<\/h2>\n<p>We have already described the best predefined R color palettes in our previous article: <a href=\"https:\/\/www.datanovia.com\/en\/blog\/top-r-color-palettes-to-know-for-great-data-visualization\/\">Top R Color Palettes to Know for Great Data Visualization<\/a>.<\/p>\n<p>In this section, we\u2019ll present briefly RColorBrewer, viridis, ggsci and Wes Anderson color palettes.<\/p>\n<div id=\"rcolorbrewer-palettes\" class=\"section level3\">\n<h3>RColorBrewer palettes<\/h3>\n<p><img decoding=\"async\" src=\"https:\/\/www.datanovia.com\/en\/wp-content\/uploads\/dn-tutorials\/ggplot2\/figures\/031-r-colors-rcolorbrewer-palettes-1.png\" width=\"384\" \/><\/p>\n<ul>\n<li>First, load the package as follow:<\/li>\n<\/ul>\n<pre class=\"r\"><code>library(\"RColorBrewer\")<\/code><\/pre>\n<ul>\n<li>Usage in base plot:<\/li>\n<\/ul>\n<pre class=\"r\"><code>barplot(c(2, 5, 8), col = brewer.pal(n = 3, name = \"Dark2\"))<\/code><\/pre>\n<p><img decoding=\"async\" src=\"https:\/\/www.datanovia.com\/en\/wp-content\/uploads\/dn-tutorials\/ggplot2\/figures\/031-r-colors-r-plot-rcolorbrewer-1.png\" width=\"240\" \/><\/p>\n<ul>\n<li>Usage in ggplots:<\/li>\n<\/ul>\n<pre class=\"r\"><code>ggplot(iris, aes(Species, Sepal.Length)) +\r\n  geom_boxplot(aes(fill = Species)) +\r\n  scale_fill_brewer(palette = \"Dark2\")<\/code><\/pre>\n<p><img decoding=\"async\" src=\"https:\/\/www.datanovia.com\/en\/wp-content\/uploads\/dn-tutorials\/ggplot2\/figures\/031-r-colors-ggplot-rcolorbrewer-1.png\" width=\"384\" \/><\/p>\n<p>Read more at: <a href=\"https:\/\/www.datanovia.com\/en\/blog\/the-a-z-of-rcolorbrewer-palette\/\">The A \u2013 Z Of Rcolorbrewer Palette<\/a><\/p>\n<\/div>\n<div id=\"viridis-color-palettes\" class=\"section level3\">\n<h3>Viridis color palettes<\/h3>\n<ul>\n<li>First, load the package as follow:<\/li>\n<\/ul>\n<pre class=\"r\"><code>library(\"viridis\")<\/code><\/pre>\n<ul>\n<li>Usage in R base plots<\/li>\n<\/ul>\n<pre class=\"r\"><code>barplot(c(2, 5, 8), col = viridis(3))<\/code><\/pre>\n<p><img decoding=\"async\" src=\"https:\/\/www.datanovia.com\/en\/wp-content\/uploads\/dn-tutorials\/ggplot2\/figures\/031-r-colors-r-plot-viridis-1.png\" width=\"240\" \/><\/p>\n<ul>\n<li>Usage in ggplots:<\/li>\n<\/ul>\n<pre class=\"r\"><code>ggplot(iris, aes(Species, Sepal.Length)) +\r\n  geom_boxplot(aes(fill = Species)) +\r\n  scale_fill_viridis(discrete = TRUE)<\/code><\/pre>\n<p><img decoding=\"async\" src=\"https:\/\/www.datanovia.com\/en\/wp-content\/uploads\/dn-tutorials\/ggplot2\/figures\/031-r-colors-ggplot-viridis-1.png\" width=\"384\" \/><\/p>\n<p>Read more at: <a href=\"https:\/\/www.datanovia.com\/en\/blog\/top-r-color-palettes-to-know-for-great-data-visualization\/#viridis-color-palettes\">Viridis color palettes<\/a><\/p>\n<\/div>\n<div id=\"scientific-journal-color-palettes\" class=\"section level3\">\n<h3>Scientific journal color palettes<\/h3>\n<p>The <code>ggsci<\/code> R package contains a collection of high-quality color palettes inspired by colors used in scientific journals, data visualization libraries, and more. For example:<\/p>\n<ul>\n<li><code>scale_color_npg()<\/code> and <code>scale_fill_npg()<\/code>: Nature Publishing Group<\/li>\n<li><code>scale_color_aaas()<\/code> and <code>scale_fill_aaas()<\/code>: American Association for the Advancement of Science<\/li>\n<li><code>scale_color_lancet()<\/code> and <code>scale_fill_lancet()<\/code>: Lancet journal<\/li>\n<li><code>scale_color_jco()<\/code> and <code>scale_fill_jco()<\/code>: Journal of Clinical Oncology<\/li>\n<\/ul>\n<div class=\"notice\">\n<p>Note that for base plots, you can use the corresponding palette generator for creating a list of colors. For example, you can use: pal_npg(), pal_aaas(), pal_lancet(), pal_jco(), and so on.<\/p>\n<\/div>\n<ul>\n<li>First, load the package as follow:<\/li>\n<\/ul>\n<pre class=\"r\"><code>library(\"ggsci\")<\/code><\/pre>\n<ul>\n<li>Usage in R base plots<\/li>\n<\/ul>\n<pre class=\"r\"><code>barplot(c(2, 5, 8), col = pal_jco()(3))<\/code><\/pre>\n<p><img decoding=\"async\" src=\"https:\/\/www.datanovia.com\/en\/wp-content\/uploads\/dn-tutorials\/ggplot2\/figures\/031-r-colors-r-plot-ggsci-1.png\" width=\"240\" \/><\/p>\n<ul>\n<li>Usage in ggplots:<\/li>\n<\/ul>\n<pre class=\"r\"><code>ggplot(iris, aes(Species, Sepal.Length)) +\r\n  geom_boxplot(aes(fill = Species)) +\r\n  scale_fill_jco()<\/code><\/pre>\n<p><img decoding=\"async\" src=\"https:\/\/www.datanovia.com\/en\/wp-content\/uploads\/dn-tutorials\/ggplot2\/figures\/031-r-colors-ggplot-ggsci-1.png\" width=\"384\" \/><\/p>\n<p>Read more at: <a href=\"https:\/\/www.datanovia.com\/en\/blog\/top-r-color-palettes-to-know-for-great-data-visualization\/\">ggsci color palettes<\/a><\/p>\n<\/div>\n<div id=\"wes-anderson-color-palettes\" class=\"section level3\">\n<h3>Wes Anderson color palettes<\/h3>\n<p>The corresponding R package contains 16 color palettes from Wes Anderson movies. The available color palettes are shown in the chart below :<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.datanovia.com\/en\/wp-content\/uploads\/dn-tutorials\/ggplot2\/figures\/031-r-colors-wes-anderson-color-palettes-r-1.png\" width=\"480\" \/><\/p>\n<ul>\n<li>First, load the package as follow:<\/li>\n<\/ul>\n<pre class=\"r\"><code>library(\"wesanderson\")<\/code><\/pre>\n<ul>\n<li>Usage in R base plots<\/li>\n<\/ul>\n<pre class=\"r\"><code>barplot(c(2, 5, 8), col = wes_palette(\"GrandBudapest1\", n = 3))<\/code><\/pre>\n<p><img decoding=\"async\" src=\"https:\/\/www.datanovia.com\/en\/wp-content\/uploads\/dn-tutorials\/ggplot2\/figures\/031-r-colors-r-plot-wes-anderson-1.png\" width=\"240\" \/><\/p>\n<ul>\n<li>Usage in ggplots:<\/li>\n<\/ul>\n<pre class=\"r\"><code>ggplot(iris, aes(Species, Sepal.Length)) +\r\n  geom_boxplot(aes(fill = Species)) +\r\n  scale_fill_manual(values = wes_palette(\"GrandBudapest1\", n = 3))<\/code><\/pre>\n<p><img decoding=\"async\" src=\"https:\/\/www.datanovia.com\/en\/wp-content\/uploads\/dn-tutorials\/ggplot2\/figures\/031-r-colors-ggplot-wes-anderson-1.png\" width=\"384\" \/><\/p>\n<p>Learn more at: <a href=\"https:\/\/www.datanovia.com\/en\/blog\/top-r-color-palettes-to-know-for-great-data-visualization\/#wes-anderson-color-palettes\">Top R Color Palettes to Know for Great Data Visualization<\/a><\/p>\n<\/div>\n<div id=\"r-base-color-palettes\" class=\"section level3\">\n<h3>R base color palettes<\/h3>\n<p>There are 5 R base functions that can be used to generate a vector of n contiguous colors: <code>rainbow(n)<\/code>, <code>heat.colors(n)<\/code>, <code>terrain.colors(n)<\/code>, <code>topo.colors(n)<\/code>, and <code>cm.colors(n)<\/code>.<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.datanovia.com\/en\/wp-content\/uploads\/dn-tutorials\/ggplot2\/figures\/031-r-colors-r-base-color-palettes-contiguous-colors-1.png\" width=\"576\" \/><\/p>\n<ul>\n<li>Usage in R base plots:<\/li>\n<\/ul>\n<pre class=\"r\"><code>barplot(1:5, col=rainbow(5))\r\n# Use heat.colors\r\nbarplot(1:5, col=heat.colors(5))\r\n# Use terrain.colors\r\nbarplot(1:5, col=terrain.colors(5))\r\n# Use topo.colors\r\nbarplot(1:5, col=topo.colors(5))\r\n# Use cm.colors\r\nbarplot(1:5, col=cm.colors(5))<\/code><\/pre>\n<ul>\n<li>Usage in ggplots:<\/li>\n<\/ul>\n<pre class=\"r\"><code>ggplot(iris, aes(Species, Sepal.Length)) +\r\n  geom_boxplot(aes(fill = Species)) +\r\n  scale_fill_manual(values = rainbow(3))<\/code><\/pre>\n<p><img decoding=\"async\" src=\"https:\/\/www.datanovia.com\/en\/wp-content\/uploads\/dn-tutorials\/ggplot2\/figures\/031-r-colors-ggplot-r-color-palettes-1.png\" width=\"384\" \/><\/p>\n<\/div>\n<\/div>\n<div id=\"conclusion\" class=\"section level2\">\n<h2>Conclusion<\/h2>\n<p>This article presents a list of R colors yu can choose to create plots using either the ggplot2 package or the R base functions.<\/p>\n<\/div>\n<\/div>\n<p><!--end rdoc--><\/p>\n","protected":false},"excerpt":{"rendered":"<p>This article provides amazing list of R colors that you can use to create beautiful graphics. Colors can be specified either by names or by hexadecimal color codes. There are [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":7771,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"rating_form_position":"","rating_results_position":"","mr_structured_data_type":"","footnotes":""},"categories":[126],"tags":[125],"class_list":["post-8205","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-r-tips-and-tricks","tag-r-colors"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.2 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>R Colors: Amazing Resources You Want to Know - Datanovia<\/title>\n<meta name=\"description\" content=\"This article provides amazing list of R colors that you can use to create beautiful graphics. 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