ggplot2 Quick Reference: colour (and fill) | Software and Programmer Efficiency Research GroupSpecifying Colours In R, a colour is represented as a string (see Color Specification section of the R par() function). Basically, a colour is defined, like in HTML/CSS, using the hexadecimal values (00 to FF) for red, green, and blue, concatenated into a string, prefixed with a "#". A pure red colour this is represented with "#FF0000". Predefined Colour Names Besides the "#RRGGBB" RGB colour stri
