I wonder if the hcl colour space is useful? Varying hue while keeping chroma and luminosity constant should give varying colours of perceptually the same "colourness" and brightness.
?hcl pie(rep(1,12),col=hcl((1:12)*30,c=70),border=NA) -----Original Message----- From: R-help [mailto:r-help-boun...@r-project.org] On Behalf Of Atte Tenkanen Sent: Sunday, 26 July 2015 7:50a To: r-help@r-project.org Subject: [R] Opposite color in R Hi, I have tried to find a way to find opposite or complementary colors in R. I would like to form a color circle with R like this one: http://nobetty.net/dandls/colorwheel/complementary_colors.jpg If you just make a basic color wheel in R, the colors do not form complementary color circle: palette(rainbow(24)) Colors=palette() pie(rep(1, 24), col = Colors) There is a package ”colortools” where you can find function opposite(), but it doesn’t work as is said. I tried library(colortools) opposite("violet") and got green instead of yellow and opposite("blue") and got yellow instead of orange. Do you know any solutions? Atte Tenkanen ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
