Hi all, I have a 36x14 matrix of hexadecimal coded colors (see attached file) that was created with the following code: cellcol[is.na(cellcol)] <- "#FFFF00" #Aliceblue cellcol[cellcol < 5] <- "#F0F8FF" #Skyblue1 cellcol[cellcol >= 5 & cellcol < 20] <- "#87CEFF" #Blue cellcol[cellcol >= 20 & cellcol < 35] <- "#0000FF" #Green3 cellcol[cellcol >= 35 & cellcol < 50] <- "#00CD00" #Yellow2 cellcol[cellcol >= 50 & cellcol < 60] <- "#EEEE00" #Orange2 cellcol[cellcol >= 60 & cellcol < 75] <- "#EE9A00" #Red cellcol[cellcol >= 75 & cellcol < 90] <- "#EE0000" #Firebrick cellcol[cellcol >= 90] <- "#B22222" My question is, can I plot this matrix using image() or do the colors need to be in a different format? Thank you. dxc13 http://www.nabble.com/file/p23542487/colors.txt colors.txt -- View this message in context: http://www.nabble.com/can-I-plot-a-matrix-of-colors--tp23542487p23542487.html Sent from the R help mailing list archive at Nabble.com.