Add some pencil info

colour.tex

@@ -20,7 +20,9 @@
   \space
   \the\year}
 \hoffset=-1in \advance\hoffset by 10mm
+\advance\voffset by -10.4mm
 \hsize=190mm
+\vsize=267mm
 
 \centerline{\hf XTerm colour codes}
 \vskip 24pt
@@ -32,5 +34,30 @@
 #\tabskip=2em&
 #&#&#&#&#\tabskip=0pt plus 1fill\cr
 \input coldata.tex
+}%
+
+\vfill
+
+% Matchings with the printer at work
+% Staedtler red          209  ff875f 1.00 0.53 0.37
+% Koh-i-noor green       76   5fd700 0.37 0.84 0.00
+% Stabilo red           208   ff8700 1.00 0.53 0.00
+% Stabilo blue           68   5f87d7 0.37 0.53 0.84
+% Herbin Violette Pensée 93   8700ff 0.53 0.00 1.00
+
+\def\ct#1#2#3#4{%
+  \special{color push rgb #1 #2 #3}%
+  #4\special{color pop}}%
+
+\tabskip=0pt plus 1fill
+\halign to \hsize{%
+  #\tabskip=0pt\quad\hfil&%
+  \hfil#\quad&%
+  #\quad\hfil&%
+  \hfil#\tabskip=0pt plus 1fill\cr
+\ct{1.00}{0.53}{0.37}{Staedtler red}          & 209 & \ct{0.37}{0.84}{0.00}{Koh-i-noor green}&76\cr
+\ct{1.00}{0.53}{0.00}{Stabilo red}            & 208 & \ct{0.37}{0.53}{0.84}{Stabilo blue}    & 68\cr
+\ct{0.53}{0.00}{1.00}{Herbin Violette Pensée} &  93 & &\cr
 }
+
 \bye