diff --git a/DESCRIPTION b/DESCRIPTION
index a0d78b1..3fcba46 100644
--- a/DESCRIPTION
+++ b/DESCRIPTION
@@ -1,7 +1,7 @@
 Type: Package
 Package: RCDT
 Title: Fast 2D Constrained Delaunay Triangulation
-Version: 1.2.1
+Version: 1.2.1.9000
 Authors@R: c(
     person("Stéphane", "Laurent", , "laurent_step@outlook.fr", role = c("aut", "cre")),
     person("Artem", "Amirkhanov", role = "cph",
@@ -16,9 +16,10 @@ License: GPL-3
 URL: https://github.com/stla/RCDT
 BugReports: https://github.com/stla/RCDT/issues
 Imports: 
+    colorsGen,
     gplots,
     graphics,
-    randomcoloR,
+    Polychrome,
     Rcpp (>= 1.0.8),
     rgl,
     Rvcg
@@ -32,9 +33,9 @@ LinkingTo:
     BH,
     Rcpp,
     RcppArmadillo
-SystemRequirements: C++ 14
+SystemRequirements: C++ 17
 VignetteBuilder: 
     knitr
 Config/testthat/edition: 3
 Encoding: UTF-8
-RoxygenNote: 7.2.1
+RoxygenNote: 7.2.3
diff --git a/NAMESPACE b/NAMESPACE
index 792e01c..7598be1 100644
--- a/NAMESPACE
+++ b/NAMESPACE
@@ -3,14 +3,14 @@
 export(delaunay)
 export(delaunayArea)
 export(plotDelaunay)
+importFrom(Polychrome,createPalette)
 importFrom(Rcpp,evalCpp)
 importFrom(Rvcg,vcgGetEdge)
+importFrom(colorsGen,randomColor)
 importFrom(gplots,col2hex)
 importFrom(graphics,par)
 importFrom(graphics,plot)
 importFrom(graphics,polygon)
 importFrom(graphics,segments)
-importFrom(randomcoloR,distinctColorPalette)
-importFrom(randomcoloR,randomColor)
 importFrom(rgl,tmesh3d)
 useDynLib(RCDT, .registration=TRUE)
diff --git a/NEWS.md b/NEWS.md
index 4e77beb..be5970e 100644
--- a/NEWS.md
+++ b/NEWS.md
@@ -1,3 +1,9 @@
+# RCDT 1.3.0 (2023-10-31)
+
+The package does no longer depend on 'randomcoloR', but it now depends on 
+'colorsGen' and 'Polychrome'.
+
+
 # RCDT 1.2.1 (2022-08-13)
 
 * Skip a unit test on Mac; it fails for some reason. 
diff --git a/R/colors.R b/R/colors.R
new file mode 100644
index 0000000..733cc1c
--- /dev/null
+++ b/R/colors.R
@@ -0,0 +1,16 @@
+#' @importFrom Polychrome createPalette
+#' @noRd
+distinctColors <- function(n, argsList) {
+  f <- function(...) {
+    createPalette(n, ...)
+  }
+  do.call(f, argsList)
+}
+
+#' @importFrom colorsGen randomColor
+rcolors <- function(n, argsList) {
+  f <- function(...) {
+    randomColor(n, ...)
+  }
+  do.call(f, argsList)
+}
diff --git a/R/plot.R b/R/plot.R
index bd434ba..3f02edb 100644
--- a/R/plot.R
+++ b/R/plot.R
@@ -13,13 +13,15 @@
 #'   \code{NULL} for no color
 #' @param fillcolor controls the filling colors of the triangles, either
 #'   \code{NULL} for no color, a single color, \code{"random"} to get multiple
-#'   colors with \code{\link[randomcoloR]{randomColor}}, \code{"distinct"}
-#'   get multiple colors with \code{\link[randomcoloR]{distinctColorPalette}}, 
+#'   colors with \code{\link[colorsGen]{randomColor}}, \code{"distinct"}
+#'   get multiple colors with \code{\link[Polychrome]{createPalette}}, 
 #'   or a vector of colors, one color for each triangle; in this case the 
 #'   the colors will be assigned in the order they are provided but after the 
 #'   triangles have been circularly ordered (see the last example)
-#' @param hue,luminosity if \code{color = "random"}, these arguments are passed
-#'   to \code{\link[randomcoloR]{randomColor}}
+#' @param distinctArgs if \code{fillcolor = "distinct"}, a list of arguments
+#'   passed to \code{\link[Polychrome]{createPalette}}
+#' @param randomArgs if \code{fillcolor = "random"}, a list of arguments passed
+#'   to \code{\link[colorsGen]{randomColor}}
 #' @param lty_edges,lwd_edges graphical parameters for the edges which are not
 #'   border edges nor constraint edges
 #' @param lty_borders,lwd_borders graphical parameters for the border edges
@@ -36,7 +38,6 @@
 #'   in the examples of \code{\link{delaunay}}.
 #'
 #' @export
-#' @importFrom randomcoloR randomColor distinctColorPalette
 #' @importFrom graphics plot polygon par segments
 #' @importFrom gplots col2hex
 #'
@@ -53,7 +54,7 @@
 #' opar <- par(mar = c(0, 0, 0, 0))
 #' plotDelaunay(
 #'   d, type = "n", xlab = NA, ylab = NA, axes = FALSE, asp = 1, 
-#'   fillcolor = "random", luminosity = "dark", lwd_borders = 3
+#'   fillcolor = "random", lwd_borders = 3
 #' )
 #' par(opar)
 #' 
@@ -134,7 +135,9 @@
 plotDelaunay <- function(
     del, 
     col_edges = "black", col_borders = "red", col_constraints = "green",
-    fillcolor = "distinct", hue = "random", luminosity = "light",
+    fillcolor = "random", 
+    distinctArgs = list(seedcolors = c("#ff0000", "#00ff00", "#0000ff")),
+    randomArgs = list(hue = "random", luminosity = "dark"),
     lty_edges = par("lty"), lwd_edges = par("lwd"),
     lty_borders = par("lty"), lwd_borders = par("lwd"),
     lty_constraints = par("lty"), lwd_constraints = par("lwd"), ...
@@ -194,9 +197,9 @@ plotDelaunay <- function(
       triangles <- t(del[["mesh"]][["it"]])
       ntriangles <- nrow(triangles)
       if(fillcolor == "random"){
-        colors <- randomColor(ntriangles, hue = hue, luminosity = luminosity)
+        colors <- rcolors(ntriangles, randomArgs)
       }else if(fillcolor == "distinct"){
-        colors <- distinctColorPalette(ntriangles)
+        colors <- distinctColors(ntriangles, distinctArgs)
       }else{
         colors <- rep(fillcolor, ntriangles)
       }
diff --git a/README.Rmd b/README.Rmd
index 9b74566..ed6a27f 100644
--- a/README.Rmd
+++ b/README.Rmd
@@ -145,7 +145,7 @@ del <- delaunay(points, edges)
 opar <- par(mar = c(0, 0, 0, 0))
 plotDelaunay(
   del, type = "n", asp = 1, lwd_borders = 3, col_borders = "black", 
-  fillcolor = "random", luminosity = "dark", col_edges = "yellow",
+  fillcolor = "random", col_edges = "yellow",
   axes = FALSE, xlab = NA, ylab = NA
 )
 par(opar)
@@ -203,7 +203,7 @@ del <- delaunay(xy, edges = rbind(edges1, edges2))
 opar <- par(mar = c(0, 0, 0, 0))
 plotDelaunay(
   del, type = "n", col_borders = "black", lwd_borders = 2, 
-  fillcolor = "random", luminosity = "dark", col_edges = "white", 
+  fillcolor = "random", col_edges = "white", 
   axes = FALSE, xlab = NA, ylab = NA, asp = 1
 )
 polygon(xy[inner, ], col = "#ffff99")
diff --git a/man/plotDelaunay.Rd b/man/plotDelaunay.Rd
index 60cea7b..b9aa27f 100644
--- a/man/plotDelaunay.Rd
+++ b/man/plotDelaunay.Rd
@@ -9,9 +9,9 @@ plotDelaunay(
   col_edges = "black",
   col_borders = "red",
   col_constraints = "green",
-  fillcolor = "distinct",
-  hue = "random",
-  luminosity = "light",
+  fillcolor = "random",
+  distinctArgs = list(seedcolors = c("#ff0000", "#00ff00", "#0000ff")),
+  randomArgs = list(hue = "random", luminosity = "dark"),
   lty_edges = par("lty"),
   lwd_edges = par("lwd"),
   lty_borders = par("lty"),
@@ -38,14 +38,17 @@ of the constraint edges which are not border edges;
 
 \item{fillcolor}{controls the filling colors of the triangles, either
 \code{NULL} for no color, a single color, \code{"random"} to get multiple
-colors with \code{\link[randomcoloR]{randomColor}}, \code{"distinct"}
-get multiple colors with \code{\link[randomcoloR]{distinctColorPalette}}, 
+colors with \code{\link[colorsGen]{randomColor}}, \code{"distinct"}
+get multiple colors with \code{\link[Polychrome]{createPalette}}, 
 or a vector of colors, one color for each triangle; in this case the 
 the colors will be assigned in the order they are provided but after the 
 triangles have been circularly ordered (see the last example)}
 
-\item{hue, luminosity}{if \code{color = "random"}, these arguments are passed
-to \code{\link[randomcoloR]{randomColor}}}
+\item{distinctArgs}{if \code{fillcolor = "distinct"}, a list of arguments
+passed to \code{\link[Polychrome]{createPalette}}}
+
+\item{randomArgs}{if \code{fillcolor = "random"}, a list of arguments passed
+to \code{\link[colorsGen]{randomColor}}}
 
 \item{lty_edges, lwd_edges}{graphical parameters for the edges which are not
 border edges nor constraint edges}
@@ -79,7 +82,7 @@ d <- delaunay(pts)
 opar <- par(mar = c(0, 0, 0, 0))
 plotDelaunay(
   d, type = "n", xlab = NA, ylab = NA, axes = FALSE, asp = 1, 
-  fillcolor = "random", luminosity = "dark", lwd_borders = 3
+  fillcolor = "random", lwd_borders = 3
 )
 par(opar)
 
diff --git a/src/Makevars b/src/Makevars
index af0c9c3..f18428c 100644
--- a/src/Makevars
+++ b/src/Makevars
@@ -1,14 +1,2 @@
-
-## With R 3.1.0 or later, you can uncomment the following line to tell R to 
-## enable compilation with C++11 (where available)
-##
-## Also, OpenMP support in Armadillo prefers C++11 support. However, for wider
-## availability of the package we do not yet enforce this here.  It is however
-## recommended for client packages to set it.
-##
-## And with R 3.4.0, and RcppArmadillo 0.7.960.*, we turn C++11 on as OpenMP
-## support within Armadillo prefers / requires it
-CXX_STD = CXX14
-
 PKG_CXXFLAGS = $(SHLIB_OPENMP_CXXFLAGS) 
 PKG_LIBS = $(SHLIB_OPENMP_CXXFLAGS) $(LAPACK_LIBS) $(BLAS_LIBS) $(FLIBS)
diff --git a/src/Makevars.win b/src/Makevars.win
index af0c9c3..f18428c 100644
--- a/src/Makevars.win
+++ b/src/Makevars.win
@@ -1,14 +1,2 @@
-
-## With R 3.1.0 or later, you can uncomment the following line to tell R to 
-## enable compilation with C++11 (where available)
-##
-## Also, OpenMP support in Armadillo prefers C++11 support. However, for wider
-## availability of the package we do not yet enforce this here.  It is however
-## recommended for client packages to set it.
-##
-## And with R 3.4.0, and RcppArmadillo 0.7.960.*, we turn C++11 on as OpenMP
-## support within Armadillo prefers / requires it
-CXX_STD = CXX14
-
 PKG_CXXFLAGS = $(SHLIB_OPENMP_CXXFLAGS) 
 PKG_LIBS = $(SHLIB_OPENMP_CXXFLAGS) $(LAPACK_LIBS) $(BLAS_LIBS) $(FLIBS)