1 files changed, 3 insertions, 0 deletions
diff --git a/js/color.js b/js/color.js
index 34404cd..d51bb67 100644
--- a/js/color.js
+++ b/js/color.js
@@ -4,6 +4,9 @@ function rgb(x,y,z){
   if (x.length) { r=x[0]; g=x[1]; b =x[2]; }
   else { r=x; g=y; b=z }
 }
+function black(){ rgb(0,0,0) }
+function white(){ rgb(255,255,255) }
+function red(){ rgb(255,0,0) }
 
 function rgb2xyz(rgb){
   var var_R = ( rgb[0] / 255 )        //R from 0 to 255